diff --git a/Cargo.toml b/Cargo.toml
index 44ca24e..5903de3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,11 +1,11 @@
 [package]
 name = "com"
-version = "0.0.1"
-authors = ["Microsoft Corp"]
+version = "0.1.0"
+authors = ["Microsoft Corp."]
 edition = "2018"
 
 [target.'cfg(windows)'.dependencies]
 winapi = { version = "0.3", features = ["winuser", "winreg", "winerror", "winnt", "libloaderapi", "olectl", "objbase",] }
 
 [dependencies]
-macros = { path="macros" }
\ No newline at end of file
+com_macros = { path = "macros" }
\ No newline at end of file
diff --git a/macros/Cargo.toml b/macros/Cargo.toml
index 8be2600..32451ea 100644
--- a/macros/Cargo.toml
+++ b/macros/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
-name = "macros"
+name = "com_macros"
 version = "0.1.0"
-authors = ["adrianwithah <lim.weiheng.hadrian@gmail.com>"]
+authors = ["Microsoft Corp."]
 edition = "2018"
 autotests = false
 
@@ -18,8 +18,5 @@ com = { path = ".." }
 
 [dependencies]
 syn = { version = "1.0.5", features = ["full"] }
-quote = "1.0"
 proc-macro2 = "1.0.1"
-com_interface = { path = "com_interface" }
-co_class = { path = "co_class" }
-aggr_co_class = { path = "aggr_co_class" }
\ No newline at end of file
+com_macros_support = { path = "support" }
\ No newline at end of file
diff --git a/macros/aggr_co_class/Cargo.toml b/macros/aggr_co_class/Cargo.toml
deleted file mode 100644
index 3d61972..0000000
--- a/macros/aggr_co_class/Cargo.toml
+++ /dev/null
@@ -1,12 +0,0 @@
-[package]
-name = "aggr_co_class"
-version = "0.1.0"
-authors = ["adrianwithah <lim.weiheng.hadrian@gmail.com>"]
-edition = "2018"
-
-[dependencies]
-syn = { version = "1.0.5", features = ["full"] }
-quote = "1.0"
-proc-macro2 = "1.0.1"
-macro_utils = { path = "../macro_utils" }
-co_class = { path = "../co_class" }
diff --git a/macros/co_class/Cargo.toml b/macros/co_class/Cargo.toml
deleted file mode 100644
index 0232062..0000000
--- a/macros/co_class/Cargo.toml
+++ /dev/null
@@ -1,11 +0,0 @@
-[package]
-name = "co_class"
-version = "0.1.0"
-authors = ["adrianwithah <lim.weiheng.hadrian@gmail.com>"]
-edition = "2018"
-
-[dependencies]
-syn = { version = "1.0.5", features = ["full"] }
-quote = "1.0"
-proc-macro2 = "1.0.1"
-macro_utils = { path = "../macro_utils" }
diff --git a/macros/com_interface/Cargo.toml b/macros/com_interface/Cargo.toml
deleted file mode 100644
index 47e5b5d..0000000
--- a/macros/com_interface/Cargo.toml
+++ /dev/null
@@ -1,11 +0,0 @@
-[package]
-name = "com_interface"
-version = "0.1.0"
-authors = ["adrianwithah <lim.weiheng.hadrian@gmail.com>"]
-edition = "2018"
-
-[dependencies]
-syn = { version = "1.0.5", features = ["full"] }
-quote = "1.0"
-proc-macro2 = "1.0.1"
-macro_utils = { path = "../macro_utils" }
\ No newline at end of file
diff --git a/macros/src/lib.rs b/macros/src/lib.rs
index faab56a..2879e17 100644
--- a/macros/src/lib.rs
+++ b/macros/src/lib.rs
@@ -1,6 +1,6 @@
-use aggr_co_class::expand_aggr_co_class;
-use co_class::expand_co_class;
-use com_interface::{expand_com_interface, expand_derive};
+use com_macros_support::aggr_co_class::expand_aggr_co_class;
+use com_macros_support::co_class::expand_co_class;
+use com_macros_support::com_interface::{expand_com_interface, expand_derive};
 
 extern crate proc_macro;
 use proc_macro::TokenStream;
diff --git a/macros/macro_utils/Cargo.toml b/macros/support/Cargo.toml
similarity index 78%
rename from macros/macro_utils/Cargo.toml
rename to macros/support/Cargo.toml
index d3f5a3f..d7ffbb3 100644
--- a/macros/macro_utils/Cargo.toml
+++ b/macros/support/Cargo.toml
@@ -1,5 +1,5 @@
 [package]
-name = "macro_utils"
+name = "com_macros_support"
 version = "0.1.0"
 authors = ["adrianwithah <lim.weiheng.hadrian@gmail.com>"]
 edition = "2018"
@@ -7,3 +7,4 @@ edition = "2018"
 [dependencies]
 syn = { version = "1.0.5", features = ["full"] }
 quote = "1.0"
+proc-macro2 = "1.0.1"
diff --git a/macros/aggr_co_class/src/class_factory.rs b/macros/support/src/aggr_co_class/class_factory.rs
similarity index 79%
rename from macros/aggr_co_class/src/class_factory.rs
rename to macros/support/src/aggr_co_class/class_factory.rs
index ccae385..de7991d 100644
--- a/macros/aggr_co_class/src/class_factory.rs
+++ b/macros/support/src/aggr_co_class/class_factory.rs
@@ -5,21 +5,21 @@ use syn::ItemStruct;
 // We manually generate a ClassFactory without macros, otherwise
 // it leads to an infinite loop.
 pub fn generate(struct_item: &ItemStruct) -> HelperTokenStream {
-    let base_interface_idents = co_class::class_factory::get_class_factory_base_interface_idents();
-    let aggr_map = co_class::class_factory::get_class_factory_aggr_map();
+    let base_interface_idents = crate::co_class::class_factory::get_class_factory_base_interface_idents();
+    let aggr_map = crate::co_class::class_factory::get_class_factory_aggr_map();
 
     let struct_ident = &struct_item.ident;
-    let class_factory_ident = macro_utils::class_factory_ident(&struct_ident);
+    let class_factory_ident = crate::utils::class_factory_ident(&struct_ident);
 
     let struct_definition =
-        co_class::class_factory::gen_class_factory_struct_definition(&class_factory_ident);
-    let lock_server = co_class::class_factory::gen_lock_server();
-    let iunknown_impl = co_class::class_factory::gen_iunknown_impl(
+        crate::co_class::class_factory::gen_class_factory_struct_definition(&class_factory_ident);
+    let lock_server = crate::co_class::class_factory::gen_lock_server();
+    let iunknown_impl = crate::co_class::class_factory::gen_iunknown_impl(
         &base_interface_idents,
         &aggr_map,
         &class_factory_ident,
     );
-    let class_factory_impl = co_class::class_factory::gen_class_factory_impl(
+    let class_factory_impl = crate::co_class::class_factory::gen_class_factory_impl(
         &base_interface_idents,
         &class_factory_ident,
     );
diff --git a/macros/aggr_co_class/src/com_struct.rs b/macros/support/src/aggr_co_class/com_struct.rs
similarity index 87%
rename from macros/aggr_co_class/src/com_struct.rs
rename to macros/support/src/aggr_co_class/com_struct.rs
index 737f7d1..6d928a5 100644
--- a/macros/aggr_co_class/src/com_struct.rs
+++ b/macros/support/src/aggr_co_class/com_struct.rs
@@ -1,3 +1,4 @@
+use crate::co_class;
 use proc_macro2::TokenStream as HelperTokenStream;
 use quote::quote;
 use std::collections::HashMap;
@@ -20,8 +21,9 @@ pub fn generate(
     let aggregate_fields = co_class::com_struct::gen_aggregate_fields(aggr_map);
 
     // COM Fields for an aggregable coclass.
-    let non_delegating_iunknown_field_ident = macro_utils::non_delegating_iunknown_field_ident();
-    let iunknown_to_use_field_ident = macro_utils::iunknown_to_use_field_ident();
+    let non_delegating_iunknown_field_ident =
+        crate::utils::non_delegating_iunknown_field_ident();
+    let iunknown_to_use_field_ident = crate::utils::iunknown_to_use_field_ident();
 
     quote!(
         #[repr(C)]
diff --git a/macros/aggr_co_class/src/com_struct_impl.rs b/macros/support/src/aggr_co_class/com_struct_impl.rs
similarity index 77%
rename from macros/aggr_co_class/src/com_struct_impl.rs
rename to macros/support/src/aggr_co_class/com_struct_impl.rs
index 6dac9ce..f1c7617 100644
--- a/macros/aggr_co_class/src/com_struct_impl.rs
+++ b/macros/support/src/aggr_co_class/com_struct_impl.rs
@@ -18,8 +18,9 @@ pub fn generate(
     let allocate_fn = gen_allocate_fn(aggr_map, base_interface_idents, struct_item);
     let set_iunknown_fn = gen_set_iunknown_fn();
     let inner_iunknown_fns = gen_inner_iunknown_fns(base_interface_idents, aggr_map, struct_ident);
-    let get_class_object_fn = co_class::com_struct_impl::gen_get_class_object_fn(struct_item);
-    let set_aggregate_fns = co_class::com_struct_impl::gen_set_aggregate_fns(aggr_map);
+    let get_class_object_fn =
+        crate::co_class::com_struct_impl::gen_get_class_object_fn(struct_item);
+    let set_aggregate_fns = crate::co_class::com_struct_impl::gen_set_aggregate_fns(aggr_map);
 
     quote!(
         impl #struct_ident {
@@ -35,8 +36,8 @@ pub fn generate(
 /// Function that should only be used by Class Object, to set the
 /// object's iunknown_to_use, if the object is going to get aggregated.
 fn gen_set_iunknown_fn() -> HelperTokenStream {
-    let iunknown_to_use_field_ident = macro_utils::iunknown_to_use_field_ident();
-    let non_delegating_iunknown_field_ident = macro_utils::non_delegating_iunknown_field_ident();
+    let iunknown_to_use_field_ident = crate::utils::iunknown_to_use_field_ident();
+    let non_delegating_iunknown_field_ident = crate::utils::non_delegating_iunknown_field_ident();
 
     quote!(
         pub(crate) fn set_iunknown(&mut self, aggr: *mut *const <dyn com::interfaces::iunknown::IUnknown as com::ComInterface>::VTable) {
@@ -68,7 +69,7 @@ fn gen_inner_iunknown_fns(
 }
 
 pub fn gen_inner_add_ref() -> HelperTokenStream {
-    let add_ref_implementation = co_class::iunknown_impl::gen_add_ref_implementation();
+    let add_ref_implementation = crate::co_class::iunknown_impl::gen_add_ref_implementation();
 
     quote! {
         pub(crate) fn inner_add_ref(&self) -> u32 {
@@ -82,18 +83,21 @@ pub fn gen_inner_release(
     aggr_map: &HashMap<Ident, Vec<Ident>>,
     struct_ident: &Ident,
 ) -> HelperTokenStream {
-    let ref_count_ident = macro_utils::ref_count_ident();
+    let ref_count_ident = crate::utils::ref_count_ident();
 
-    let release_decrement = co_class::iunknown_impl::gen_release_decrement(&ref_count_ident);
+    let release_decrement = crate::co_class::iunknown_impl::gen_release_decrement(&ref_count_ident);
     let release_assign_new_count_to_var =
-        co_class::iunknown_impl::gen_release_assign_new_count_to_var(
+        crate::co_class::iunknown_impl::gen_release_assign_new_count_to_var(
             &ref_count_ident,
             &ref_count_ident,
         );
     let release_new_count_var_zero_check =
-        co_class::iunknown_impl::gen_new_count_var_zero_check(&ref_count_ident);
-    let release_drops =
-        co_class::iunknown_impl::gen_release_drops(base_interface_idents, aggr_map, struct_ident);
+        crate::co_class::iunknown_impl::gen_new_count_var_zero_check(&ref_count_ident);
+    let release_drops = crate::co_class::iunknown_impl::gen_release_drops(
+        base_interface_idents,
+        aggr_map,
+        struct_ident,
+    );
     let non_delegating_iunknown_drop = gen_non_delegating_iunknown_drop();
 
     quote! {
@@ -111,7 +115,7 @@ pub fn gen_inner_release(
 }
 
 fn gen_non_delegating_iunknown_drop() -> HelperTokenStream {
-    let non_delegating_iunknown_field_ident = macro_utils::non_delegating_iunknown_field_ident();
+    let non_delegating_iunknown_field_ident = crate::utils::non_delegating_iunknown_field_ident();
     quote!(
         Box::from_raw(self.#non_delegating_iunknown_field_ident as *mut <dyn com::interfaces::iunknown::IUnknown as com::ComInterface>::VTable);
     )
@@ -122,13 +126,14 @@ fn gen_inner_query_interface(
     base_interface_idents: &[Ident],
     aggr_map: &HashMap<Ident, Vec<Ident>>,
 ) -> HelperTokenStream {
-    let non_delegating_iunknown_field_ident = macro_utils::non_delegating_iunknown_field_ident();
+    let non_delegating_iunknown_field_ident = crate::utils::non_delegating_iunknown_field_ident();
 
     // Generate match arms for implemented interfaces
-    let base_match_arms = co_class::iunknown_impl::gen_base_match_arms(base_interface_idents);
+    let base_match_arms =
+        crate::co_class::iunknown_impl::gen_base_match_arms(base_interface_idents);
 
     // Generate match arms for aggregated interfaces
-    let aggr_match_arms = co_class::iunknown_impl::gen_aggregate_match_arms(aggr_map);
+    let aggr_match_arms = crate::co_class::iunknown_impl::gen_aggregate_match_arms(aggr_map);
 
     quote!(
         pub(crate) fn inner_query_interface(&self, riid: *const winapi::shared::guiddef::IID, ppv: *mut *mut winapi::ctypes::c_void) -> HRESULT {
@@ -159,22 +164,26 @@ fn gen_allocate_fn(
 ) -> HelperTokenStream {
     let struct_ident = &struct_item.ident;
 
-    let base_inits =
-        co_class::com_struct_impl::gen_allocate_base_inits(struct_ident, base_interface_idents);
+    let base_inits = crate::co_class::com_struct_impl::gen_allocate_base_inits(
+        struct_ident,
+        base_interface_idents,
+    );
 
     // Allocate function signature
     let allocate_parameters =
-        co_class::com_struct_impl::gen_allocate_function_parameters_signature(struct_item);
+        crate::co_class::com_struct_impl::gen_allocate_function_parameters_signature(struct_item);
 
     // Syntax for instantiating the fields of the struct.
-    let base_fields = co_class::com_struct_impl::gen_allocate_base_fields(base_interface_idents);
-    let ref_count_field = co_class::com_struct_impl::gen_allocate_ref_count_field();
-    let user_fields = co_class::com_struct_impl::gen_allocate_user_fields(struct_item);
-    let aggregate_fields = co_class::com_struct_impl::gen_allocate_aggregate_fields(aggr_map);
+    let base_fields =
+        crate::co_class::com_struct_impl::gen_allocate_base_fields(base_interface_idents);
+    let ref_count_field = crate::co_class::com_struct_impl::gen_allocate_ref_count_field();
+    let user_fields = crate::co_class::com_struct_impl::gen_allocate_user_fields(struct_item);
+    let aggregate_fields =
+        crate::co_class::com_struct_impl::gen_allocate_aggregate_fields(aggr_map);
 
     // Aggregable COM struct specific fields
-    let iunknown_to_use_field_ident = macro_utils::iunknown_to_use_field_ident();
-    let non_delegating_iunknown_field_ident = macro_utils::non_delegating_iunknown_field_ident();
+    let iunknown_to_use_field_ident = crate::utils::iunknown_to_use_field_ident();
+    let non_delegating_iunknown_field_ident = crate::utils::non_delegating_iunknown_field_ident();
     let non_delegating_iunknown_offset = base_interface_idents.len();
 
     quote!(
diff --git a/macros/aggr_co_class/src/iunknown_impl.rs b/macros/support/src/aggr_co_class/iunknown_impl.rs
similarity index 94%
rename from macros/aggr_co_class/src/iunknown_impl.rs
rename to macros/support/src/aggr_co_class/iunknown_impl.rs
index 910e712..a9a3293 100644
--- a/macros/aggr_co_class/src/iunknown_impl.rs
+++ b/macros/support/src/aggr_co_class/iunknown_impl.rs
@@ -7,7 +7,7 @@ use syn::ItemStruct;
 /// delegate to the interface pointer at __iunknown_to_use.
 pub fn generate(struct_item: &ItemStruct) -> HelperTokenStream {
     let struct_ident = &struct_item.ident;
-    let iunknown_to_use_field_ident = macro_utils::iunknown_to_use_field_ident();
+    let iunknown_to_use_field_ident = crate::utils::iunknown_to_use_field_ident();
     let ptr_casting = quote! { as *mut winapi::ctypes::c_void };
 
     quote!(
diff --git a/macros/aggr_co_class/src/lib.rs b/macros/support/src/aggr_co_class/mod.rs
similarity index 75%
rename from macros/aggr_co_class/src/lib.rs
rename to macros/support/src/aggr_co_class/mod.rs
index a252556..e603830 100644
--- a/macros/aggr_co_class/src/lib.rs
+++ b/macros/support/src/aggr_co_class/mod.rs
@@ -10,15 +10,15 @@ mod com_struct_impl;
 mod iunknown_impl;
 
 pub fn expand_aggr_co_class(input: &ItemStruct, attr_args: &AttributeArgs) -> TokenStream {
-    let base_interface_idents = macro_utils::base_interface_idents(attr_args);
-    let aggr_interface_idents = macro_utils::get_aggr_map(attr_args);
+    let base_interface_idents = crate::utils::base_interface_idents(attr_args);
+    let aggr_interface_idents = crate::utils::get_aggr_map(attr_args);
 
     let mut out: Vec<TokenStream> = Vec::new();
     out.push(com_struct::generate(&aggr_interface_idents, &base_interface_idents, input).into());
     out.push(
         com_struct_impl::generate(&base_interface_idents, &aggr_interface_idents, input).into(),
     );
-    out.push(co_class::co_class_impl::generate(input).into());
+    out.push(crate::co_class::co_class_impl::generate(input).into());
     out.push(iunknown_impl::generate(input).into());
     out.push(class_factory::generate(input).into());
 
diff --git a/macros/co_class/src/class_factory.rs b/macros/support/src/co_class/class_factory.rs
similarity index 87%
rename from macros/co_class/src/class_factory.rs
rename to macros/support/src/co_class/class_factory.rs
index 5283b06..87a4c68 100644
--- a/macros/co_class/src/class_factory.rs
+++ b/macros/support/src/co_class/class_factory.rs
@@ -25,7 +25,7 @@ pub fn generate(struct_item: &ItemStruct) -> HelperTokenStream {
     let aggr_map = get_class_factory_aggr_map();
 
     let struct_ident = &struct_item.ident;
-    let class_factory_ident = macro_utils::class_factory_ident(&struct_ident);
+    let class_factory_ident = crate::utils::class_factory_ident(&struct_ident);
 
     let struct_definition = gen_class_factory_struct_definition(&class_factory_ident);
     let lock_server = gen_lock_server();
@@ -69,9 +69,9 @@ pub fn generate(struct_item: &ItemStruct) -> HelperTokenStream {
 
 // Can't use gen_base_fields here, since user might not have imported IClassFactory.
 pub fn gen_class_factory_struct_definition(class_factory_ident: &Ident) -> HelperTokenStream {
-    let ref_count_field = crate::com_struct::gen_ref_count_field();
+    let ref_count_field = super::com_struct::gen_ref_count_field();
     let interface_ident = get_iclass_factory_interface_ident();
-    let vptr_field_ident = macro_utils::vptr_field_ident(&interface_ident);
+    let vptr_field_ident = crate::utils::vptr_field_ident(&interface_ident);
     quote! {
         #[repr(C)]
         pub struct #class_factory_ident {
@@ -96,7 +96,7 @@ pub fn gen_iunknown_impl(
     class_factory_ident: &Ident,
 ) -> HelperTokenStream {
     let query_interface = gen_query_interface();
-    let add_ref = crate::iunknown_impl::gen_add_ref();
+    let add_ref = super::iunknown_impl::gen_add_ref();
     let release = gen_release(&base_interface_idents, &aggr_map, class_factory_ident);
     quote! {
         impl com::interfaces::iunknown::IUnknown for #class_factory_ident {
@@ -112,17 +112,17 @@ pub fn gen_release(
     aggr_map: &HashMap<Ident, Vec<Ident>>,
     struct_ident: &Ident,
 ) -> HelperTokenStream {
-    let ref_count_ident = macro_utils::ref_count_ident();
+    let ref_count_ident = crate::utils::ref_count_ident();
 
-    let release_decrement = crate::iunknown_impl::gen_release_decrement(&ref_count_ident);
-    let release_assign_new_count_to_var = crate::iunknown_impl::gen_release_assign_new_count_to_var(
+    let release_decrement = super::iunknown_impl::gen_release_decrement(&ref_count_ident);
+    let release_assign_new_count_to_var = super::iunknown_impl::gen_release_assign_new_count_to_var(
         &ref_count_ident,
         &ref_count_ident,
     );
     let release_new_count_var_zero_check =
-        crate::iunknown_impl::gen_new_count_var_zero_check(&ref_count_ident);
+        super::iunknown_impl::gen_new_count_var_zero_check(&ref_count_ident);
     let release_drops =
-        crate::iunknown_impl::gen_release_drops(base_interface_idents, aggr_map, struct_ident);
+        super::iunknown_impl::gen_release_drops(base_interface_idents, aggr_map, struct_ident);
 
     quote! {
         unsafe fn release(&self) -> u32 {
@@ -140,7 +140,7 @@ pub fn gen_release(
 }
 
 fn gen_query_interface() -> HelperTokenStream {
-    let vptr_field_ident = macro_utils::vptr_field_ident(&get_iclass_factory_interface_ident());
+    let vptr_field_ident = crate::utils::vptr_field_ident(&get_iclass_factory_interface_ident());
 
     quote! {
         unsafe fn query_interface(&self, riid: *const winapi::shared::guiddef::IID, ppv: *mut *mut winapi::ctypes::c_void) -> winapi::shared::winerror::HRESULT {
@@ -164,10 +164,10 @@ pub fn gen_class_factory_impl(
     base_interface_idents: &[Ident],
     class_factory_ident: &Ident,
 ) -> HelperTokenStream {
-    let ref_count_field = crate::com_struct_impl::gen_allocate_ref_count_field();
-    let base_fields = crate::com_struct_impl::gen_allocate_base_fields(base_interface_idents);
+    let ref_count_field = super::com_struct_impl::gen_allocate_ref_count_field();
+    let base_fields = super::com_struct_impl::gen_allocate_base_fields(base_interface_idents);
     let base_inits =
-        crate::com_struct_impl::gen_allocate_base_inits(class_factory_ident, base_interface_idents);
+        super::com_struct_impl::gen_allocate_base_inits(class_factory_ident, base_interface_idents);
 
     quote! {
         impl #class_factory_ident {
diff --git a/macros/co_class/src/co_class_impl.rs b/macros/support/src/co_class/co_class_impl.rs
similarity index 100%
rename from macros/co_class/src/co_class_impl.rs
rename to macros/support/src/co_class/co_class_impl.rs
diff --git a/macros/co_class/src/com_struct.rs b/macros/support/src/co_class/com_struct.rs
similarity index 94%
rename from macros/co_class/src/com_struct.rs
rename to macros/support/src/co_class/com_struct.rs
index cfdb892..729dcc1 100644
--- a/macros/co_class/src/com_struct.rs
+++ b/macros/support/src/co_class/com_struct.rs
@@ -36,14 +36,14 @@ pub fn generate(
 
 pub fn gen_base_fields(base_interface_idents: &[Ident]) -> HelperTokenStream {
     let bases_interface_idents = base_interface_idents.iter().map(|base| {
-        let field_ident = macro_utils::vptr_field_ident(&base);
+        let field_ident = crate::utils::vptr_field_ident(&base);
         quote!(#field_ident: *const <dyn #base as com::ComInterface>::VTable)
     });
     quote!(#(#bases_interface_idents,)*)
 }
 
 pub fn gen_ref_count_field() -> HelperTokenStream {
-    let ref_count_ident = macro_utils::ref_count_ident();
+    let ref_count_ident = crate::utils::ref_count_ident();
     quote!(#ref_count_ident: std::cell::Cell<u32>,)
 }
 
diff --git a/macros/co_class/src/com_struct_impl.rs b/macros/support/src/co_class/com_struct_impl.rs
similarity index 93%
rename from macros/co_class/src/com_struct_impl.rs
rename to macros/support/src/co_class/com_struct_impl.rs
index 9f1e40a..f0f054a 100644
--- a/macros/co_class/src/com_struct_impl.rs
+++ b/macros/support/src/co_class/com_struct_impl.rs
@@ -93,7 +93,7 @@ pub fn gen_allocate_user_fields(struct_item: &ItemStruct) -> HelperTokenStream {
 
 // Reference count field initialisation.
 pub fn gen_allocate_ref_count_field() -> HelperTokenStream {
-    let ref_count_ident = macro_utils::ref_count_ident();
+    let ref_count_ident = crate::utils::ref_count_ident();
     quote!(
         #ref_count_ident: std::cell::Cell::new(0),
     )
@@ -102,7 +102,7 @@ pub fn gen_allocate_ref_count_field() -> HelperTokenStream {
 // Generate the vptr field idents needed in the instantiation syntax of the COM struct.
 pub fn gen_allocate_base_fields(base_interface_idents: &[Ident]) -> HelperTokenStream {
     let base_fields = base_interface_idents.iter().map(|base| {
-        let vptr_field_ident = macro_utils::vptr_field_ident(base);
+        let vptr_field_ident = crate::utils::vptr_field_ident(base);
         quote!(#vptr_field_ident)
     });
 
@@ -117,7 +117,7 @@ pub fn gen_allocate_base_inits(
     let mut offset_count: usize = 0;
     let base_inits = base_interface_idents.iter().map(|base| {
         let vtable_var_ident = format_ident!("{}_vtable", base.to_string().to_lowercase());
-        let vptr_field_ident = macro_utils::vptr_field_ident(&base);
+        let vptr_field_ident = crate::utils::vptr_field_ident(&base);
 
         let out = quote!(
             let #vtable_var_ident = com::vtable!(#struct_ident: #base, #offset_count);
@@ -135,7 +135,7 @@ pub fn gen_allocate_base_inits(
 /// class object.
 pub fn gen_get_class_object_fn(struct_item: &ItemStruct) -> HelperTokenStream {
     let struct_ident = &struct_item.ident;
-    let class_factory_ident = macro_utils::class_factory_ident(&struct_ident);
+    let class_factory_ident = crate::utils::class_factory_ident(&struct_ident);
 
     quote!(
         pub fn get_class_object() -> Box<#class_factory_ident> {
@@ -148,7 +148,7 @@ pub fn gen_set_aggregate_fns(aggr_map: &HashMap<Ident, Vec<Ident>>) -> HelperTok
     let mut fns = Vec::new();
     for (aggr_field_ident, aggr_base_interface_idents) in aggr_map.iter() {
         for base in aggr_base_interface_idents {
-            let set_aggregate_fn_ident = macro_utils::set_aggregate_fn_ident(&base);
+            let set_aggregate_fn_ident = crate::utils::set_aggregate_fn_ident(&base);
             fns.push(quote!(
                 fn #set_aggregate_fn_ident(&mut self, aggr: com::InterfacePtr<dyn com::interfaces::iunknown::IUnknown>) {
                     // TODO: What happens if we are overwriting an existing aggregate?
diff --git a/macros/co_class/src/iunknown_impl.rs b/macros/support/src/co_class/iunknown_impl.rs
similarity index 95%
rename from macros/co_class/src/iunknown_impl.rs
rename to macros/support/src/co_class/iunknown_impl.rs
index cf65b56..9697247 100644
--- a/macros/co_class/src/iunknown_impl.rs
+++ b/macros/support/src/co_class/iunknown_impl.rs
@@ -37,7 +37,7 @@ pub fn gen_add_ref() -> HelperTokenStream {
 }
 
 pub fn gen_add_ref_implementation() -> HelperTokenStream {
-    let ref_count_ident = macro_utils::ref_count_ident();
+    let ref_count_ident = crate::utils::ref_count_ident();
     quote!(
         let value = self.#ref_count_ident.get().checked_add(1).expect("Overflow of reference count");
         self.#ref_count_ident.set(value);
@@ -50,7 +50,7 @@ pub fn gen_release(
     aggr_map: &HashMap<Ident, Vec<Ident>>,
     struct_ident: &Ident,
 ) -> HelperTokenStream {
-    let ref_count_ident = macro_utils::ref_count_ident();
+    let ref_count_ident = crate::utils::ref_count_ident();
 
     let release_decrement = gen_release_decrement(&ref_count_ident);
     let release_assign_new_count_to_var =
@@ -102,7 +102,7 @@ fn gen_aggregate_drops(aggr_map: &HashMap<Ident, Vec<Ident>>) -> HelperTokenStre
 
 fn gen_vptr_drops(base_interface_idents: &[Ident]) -> HelperTokenStream {
     let vptr_drops = base_interface_idents.iter().map(|base| {
-        let vptr_field_ident = macro_utils::vptr_field_ident(&base);
+        let vptr_field_ident = crate::utils::vptr_field_ident(&base);
         quote!(
             Box::from_raw(self.#vptr_field_ident as *mut <dyn #base as com::ComInterface>::VTable);
         )
@@ -143,7 +143,7 @@ pub fn gen_query_interface(
     base_interface_idents: &[Ident],
     aggr_map: &HashMap<Ident, Vec<Ident>>,
 ) -> HelperTokenStream {
-    let first_vptr_field = macro_utils::vptr_field_ident(&base_interface_idents[0]);
+    let first_vptr_field = crate::utils::vptr_field_ident(&base_interface_idents[0]);
 
     // Generate match arms for implemented interfaces
     let base_match_arms = gen_base_match_arms(base_interface_idents);
@@ -177,7 +177,7 @@ pub fn gen_base_match_arms(base_interface_idents: &[Ident]) -> HelperTokenStream
     let base_match_arms = base_interface_idents.iter().map(|base| {
         let match_condition =
             quote!(<dyn #base as com::ComInterface>::is_iid_in_inheritance_chain(riid));
-        let vptr_field_ident = macro_utils::vptr_field_ident(&base);
+        let vptr_field_ident = crate::utils::vptr_field_ident(&base);
 
         quote!(
             else if #match_condition {
diff --git a/macros/co_class/src/lib.rs b/macros/support/src/co_class/mod.rs
similarity index 82%
rename from macros/co_class/src/lib.rs
rename to macros/support/src/co_class/mod.rs
index a56f9d1..84da47f 100644
--- a/macros/co_class/src/lib.rs
+++ b/macros/support/src/co_class/mod.rs
@@ -1,4 +1,3 @@
-extern crate proc_macro;
 use proc_macro::TokenStream;
 use syn::{AttributeArgs, ItemStruct};
 
@@ -11,8 +10,8 @@ pub mod com_struct_impl;
 pub mod iunknown_impl;
 
 pub fn expand_co_class(input: &ItemStruct, attr_args: &AttributeArgs) -> TokenStream {
-    let base_interface_idents = macro_utils::base_interface_idents(attr_args);
-    let aggr_interface_idents = macro_utils::get_aggr_map(attr_args);
+    let base_interface_idents = crate::utils::base_interface_idents(attr_args);
+    let aggr_interface_idents = crate::utils::get_aggr_map(attr_args);
 
     let mut out: Vec<TokenStream> = Vec::new();
     out.push(com_struct::generate(&aggr_interface_idents, &base_interface_idents, input).into());
diff --git a/macros/com_interface/src/com_interface_impl.rs b/macros/support/src/com_interface/com_interface_impl.rs
similarity index 96%
rename from macros/com_interface/src/com_interface_impl.rs
rename to macros/support/src/com_interface/com_interface_impl.rs
index 0536aa6..a2085fe 100644
--- a/macros/com_interface/src/com_interface_impl.rs
+++ b/macros/support/src/com_interface/com_interface_impl.rs
@@ -1,4 +1,4 @@
-use crate::{iid, vtable, vtable_macro};
+use crate::com_interface::{iid, vtable, vtable_macro};
 
 use proc_macro2::TokenStream as HelperTokenStream;
 use quote::quote;
diff --git a/macros/com_interface/src/iid.rs b/macros/support/src/com_interface/iid.rs
similarity index 97%
rename from macros/com_interface/src/iid.rs
rename to macros/support/src/com_interface/iid.rs
index 75f04e7..aec8f08 100644
--- a/macros/com_interface/src/iid.rs
+++ b/macros/support/src/com_interface/iid.rs
@@ -1,5 +1,3 @@
-use macro_utils;
-
 use proc_macro::TokenStream;
 use proc_macro2::{Ident, Span, TokenStream as HelperTokenStream};
 use quote::{format_ident, quote};
@@ -85,6 +83,6 @@ pub fn generate(macro_attr: &TokenStream, interface_ident: &Ident) -> HelperToke
 pub fn ident(interface_ident: &Ident) -> Ident {
     format_ident!(
         "IID_{}",
-        macro_utils::camel_to_snake(&interface_ident.to_string()).to_uppercase()
+        crate::utils::camel_to_snake(&interface_ident.to_string()).to_uppercase()
     )
 }
diff --git a/macros/com_interface/src/interface_impl.rs b/macros/support/src/com_interface/interface_impl.rs
similarity index 94%
rename from macros/com_interface/src/interface_impl.rs
rename to macros/support/src/com_interface/interface_impl.rs
index d5a978b..bf4b400 100644
--- a/macros/com_interface/src/interface_impl.rs
+++ b/macros/support/src/com_interface/interface_impl.rs
@@ -1,5 +1,4 @@
-use crate::vptr;
-use macro_utils;
+use super::vptr;
 
 use proc_macro2::{Ident, TokenStream as HelperTokenStream};
 use quote::{format_ident, quote, ToTokens};
@@ -34,7 +33,7 @@ fn gen_impl_method(interface_ident: &Ident, method: &TraitItemMethod) -> HelperT
     let vptr_ident = vptr::ident(&interface_ident.to_string());
     let method_ident = format_ident!(
         "{}",
-        macro_utils::snake_to_camel(&method.sig.ident.to_string())
+        crate::utils::snake_to_camel(&method.sig.ident.to_string())
     );
     let interface_ptr_ident = format_ident!("interface_ptr");
 
diff --git a/macros/com_interface/src/lib.rs b/macros/support/src/com_interface/mod.rs
similarity index 100%
rename from macros/com_interface/src/lib.rs
rename to macros/support/src/com_interface/mod.rs
diff --git a/macros/com_interface/src/vptr.rs b/macros/support/src/com_interface/vptr.rs
similarity index 95%
rename from macros/com_interface/src/vptr.rs
rename to macros/support/src/com_interface/vptr.rs
index 75802c0..0c1a100 100644
--- a/macros/com_interface/src/vptr.rs
+++ b/macros/support/src/com_interface/vptr.rs
@@ -1,4 +1,4 @@
-use crate::vtable;
+use super::vtable;
 use proc_macro2::{Ident, TokenStream as HelperTokenStream};
 use quote::{format_ident, quote};
 
diff --git a/macros/com_interface/src/vtable.rs b/macros/support/src/com_interface/vtable.rs
similarity index 96%
rename from macros/com_interface/src/vtable.rs
rename to macros/support/src/com_interface/vtable.rs
index f648283..4c1a99c 100644
--- a/macros/com_interface/src/vtable.rs
+++ b/macros/support/src/com_interface/vtable.rs
@@ -1,5 +1,4 @@
-use crate::vptr;
-use macro_utils;
+use super::vptr;
 use proc_macro2::{Ident, TokenStream as HelperTokenStream};
 use quote::{format_ident, quote};
 use std::iter::FromIterator;
@@ -56,7 +55,7 @@ pub fn ident(interface_name: &str) -> Ident {
 }
 
 fn base_field_ident(base_interface_name: &str) -> Ident {
-    format_ident!("{}_base", macro_utils::camel_to_snake(base_interface_name))
+    format_ident!("{}_base", crate::utils::camel_to_snake(base_interface_name))
 }
 
 fn gen_vtable_methods(interface: &ItemTrait) -> HelperTokenStream {
@@ -76,7 +75,7 @@ fn gen_vtable_methods(interface: &ItemTrait) -> HelperTokenStream {
 fn gen_vtable_method(interface_ident: &Ident, method: &TraitItemMethod) -> HelperTokenStream {
     let method_ident = format_ident!(
         "{}",
-        macro_utils::snake_to_camel(&method.sig.ident.to_string())
+        crate::utils::snake_to_camel(&method.sig.ident.to_string())
     );
     let vtable_function_signature = gen_vtable_function_signature(interface_ident, method);
 
diff --git a/macros/com_interface/src/vtable_macro.rs b/macros/support/src/com_interface/vtable_macro.rs
similarity index 93%
rename from macros/com_interface/src/vtable_macro.rs
rename to macros/support/src/com_interface/vtable_macro.rs
index 6637070..10142d1 100644
--- a/macros/com_interface/src/vtable_macro.rs
+++ b/macros/support/src/com_interface/vtable_macro.rs
@@ -1,5 +1,3 @@
-use macro_utils;
-
 use proc_macro2::{Ident, TokenStream as HelperTokenStream};
 use quote::{format_ident, quote};
 use syn::{ItemStruct, Type, TypeBareFn};
@@ -24,7 +22,7 @@ pub fn generate(item: &ItemStruct) -> HelperTokenStream {
 pub fn ident(struct_ident: &Ident) -> Ident {
     format_ident!(
         "{}_gen_vtable",
-        macro_utils::camel_to_snake(&struct_ident.to_string().replace("VTable", ""))
+        crate::utils::camel_to_snake(&struct_ident.to_string().replace("VTable", ""))
     )
 }
 
@@ -35,7 +33,7 @@ fn gen_parent_vtable_binding(item: &ItemStruct) -> HelperTokenStream {
         if parent.ends_with("_base") {
             let parent = format_ident!(
                 "I{}",
-                macro_utils::snake_to_camel(
+                crate::utils::snake_to_camel(
                     parent.trim_end_matches("_base").trim_start_matches("i")
                 )
             );
@@ -75,7 +73,7 @@ fn gen_vtable_function(
 ) -> HelperTokenStream {
     assert!(fun.unsafety.is_some(), "Function must be marked unsafe");
     assert!(fun.abi.is_some(), "Function must have marked ABI");
-    let method_name = format_ident!("{}", macro_utils::camel_to_snake(&method_name.to_string()));
+    let method_name = format_ident!("{}", crate::utils::camel_to_snake(&method_name.to_string()));
     let interface_name = struct_ident.to_string().replace("VTable", "");
     let interface_ident = format_ident!("{}", interface_name);
     let function_ident = format_ident!("{}_{}", interface_name.to_lowercase(), method_name);
@@ -127,7 +125,7 @@ fn gen_vtable_method_initialization(item: &ItemStruct) -> HelperTokenStream {
             let function_ident = format_ident!(
                 "{}_{}",
                 item.ident.to_string().replace("VTable", "").to_lowercase(),
-                macro_utils::camel_to_snake(&method_ident.to_string())
+                crate::utils::camel_to_snake(&method_ident.to_string())
             );
             quote! {
                 #function_ident::<$class, $offset>,
diff --git a/macros/support/src/lib.rs b/macros/support/src/lib.rs
new file mode 100644
index 0000000..1367d91
--- /dev/null
+++ b/macros/support/src/lib.rs
@@ -0,0 +1,6 @@
+extern crate proc_macro;
+
+pub mod aggr_co_class;
+pub mod co_class;
+pub mod com_interface;
+mod utils;
diff --git a/macros/macro_utils/src/idents.rs b/macros/support/src/utils/idents.rs
similarity index 89%
rename from macros/macro_utils/src/idents.rs
rename to macros/support/src/utils/idents.rs
index e9998f9..d9e83f0 100644
--- a/macros/macro_utils/src/idents.rs
+++ b/macros/support/src/utils/idents.rs
@@ -7,14 +7,6 @@ pub fn class_factory_ident(class_ident: &Ident) -> Ident {
     format_ident!("{}ClassFactory", class_ident)
 }
 
-pub fn vtable_ident(interface_ident: &Ident) -> Ident {
-    format_ident!("{}VTable", interface_ident)
-}
-
-pub fn vptr_ident(interface_ident: &Ident) -> Ident {
-    format_ident!("{}VPtr", interface_ident)
-}
-
 pub fn non_delegating_iunknown_field_ident() -> Ident {
     format_ident!("__non_delegatingegating_iunknown")
 }
@@ -32,7 +24,7 @@ pub fn vptr_field_ident(interface_ident: &Ident) -> Ident {
 }
 
 pub fn set_aggregate_fn_ident(base: &Ident) -> Ident {
-    format_ident!("set_aggregate_{}", crate::camel_to_snake(&base.to_string()))
+    format_ident!("set_aggregate_{}", super::camel_to_snake(&base.to_string()))
 }
 
 pub fn base_interface_idents(attr_args: &AttributeArgs) -> Vec<Ident> {
@@ -89,7 +81,7 @@ pub fn get_aggr_map(attr_args: &AttributeArgs) -> HashMap<Ident, Vec<Ident>> {
             }
             let ident = aggr_interfaces_idents
                 .iter()
-                .map(|base| crate::camel_to_snake(&base.to_string()))
+                .map(|base| super::camel_to_snake(&base.to_string()))
                 .fold("aggr".to_owned(), |acc, base| format!("{}_{}", acc, base));
             aggr_map.insert(format_ident!("{}", ident), aggr_interfaces_idents);
         }
diff --git a/macros/macro_utils/src/lib.rs b/macros/support/src/utils/mod.rs
similarity index 100%
rename from macros/macro_utils/src/lib.rs
rename to macros/support/src/utils/mod.rs
diff --git a/src/lib.rs b/src/lib.rs
index 3695742..8033294 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -66,7 +66,7 @@ macro_rules! vtable {
 pub extern crate winapi as _winapi;
 
 #[doc(hidden)]
-pub use macros::{co_class, com_interface, VTable};
+pub use com_macros::{co_class, com_interface, VTable};
 
 // this allows for the crate to refer to itself as `com` to keep macros consistent
 // whether they are used by some other crate or internally