Windows.Injector

Allows injecting .NET code into a remote process on Windows

Heavily based on Cory Plott's Snoop.

Usage:

• Install:

install-package Xamarin.Windows.Injector

The following properties are used to determine which version (x86 or x64) of the boostrap.dll assembly will be referenced: PlatformTarget, Platform and RuntimeIdentifier. If any of those specify either x86 or x64, the assembly will be automatically referenced. Note that you cannot invoke the injector via its API from an AnyCPU library, since it has to be of a specific bitness.

The targets automatically include as content both the assembly as well as a helper Injector.exe executable which you can use to inject into processes that have a different bitness than the calling one.

• Launch:

var targetProcess = System.Diagnostics.Process.GetProcessesByName("devenv.exe")[0];

Injector.Launch(
    // IntPtr of the main window handle of the process to inject
    targetProcess.MainWindowHandle,
    // The full path to the .NET assembly to load in the remote process
    Assembly.GetExecutingAssembly().Location,
    // Full type name of the public static class to invoke in the remote process
    "MyApp.Startup",
    // Name of the static method in that class to invoke in the remote process
    "Start");

Optionally, the injected method call can also receive parameters, in a {method}:arg1:arg2:argN format:

var targetProcess = System.Diagnostics.Process.GetProcessesByName("devenv.exe")[0];

Injector.Launch(
    // IntPtr of the main window handle of the process to inject
    targetProcess.MainWindowHandle,
    // The full path to the .NET assembly to load in the remote process
    Assembly.GetExecutingAssembly().Location,
    // Full type name of the public static class to invoke in the remote process
    "MyApp.Startup",
    // Name of the static method in that class to invoke in the remote process
    "Start:hello:42:true");

See Program.cs for complete example.

When referencing the package from an AnyCPU project, the x86 and x64 folders will be included as content and copied to the project output path. This allows you to run the relevant Injector.exe for that matches the target process bitness. This executable receives the same parameters as the Launch method shown above.

NOTE: parameter type conversion is supported and happens via the TypeConverter associated with the parameter type.