diff --git a/DEVGUIDE.md b/DEVGUIDE.md
index 21a75df82..3ade98c6b 100644
--- a/DEVGUIDE.md
+++ b/DEVGUIDE.md
@@ -94,7 +94,15 @@ then building the solution will be enough.
  - We use the proto compiler to compile the source for `FSharp.Core.dll` in this distribution.
  - We use the proto compiler to compile the source for `FSharp.Compiler.dll`, `fsc.exe`, `fsi.exe`, and other binaries found in this distribution.
 
+### Configuring proxy server
 
+If you are behind a proxy server, NuGet client tool must be configured to use it:
+
+    .nuget\nuget.exe config -set http_proxy=proxy.domain.com:8080 -ConfigFile .nuget\NuGet.Config
+    .nuget\nuget.exe config -set http_proxy.user=user_name -ConfigFile .nuget\NuGet.Config
+    .nuget\nuget.exe config -set http_proxy.password=user_password -ConfigFile .nuget\NuGet.Config
+
+Where you should set proper proxy address, user name and password.
 
 # The Visual F# IDE Tools (Windows Only)
 
@@ -120,12 +128,12 @@ components installed in that VS installation.  You can revert this step by disab
 For **Debug**, uninstall then reinstall:
 
     VSIXInstaller.exe  /a /u:"VisualFSharp"
-    VSIXInstaller.exe /a  debug\net40\bin\VisualFSharpFull.vsix
+    VSIXInstaller.exe /a debug\net40\bin\VisualFSharpOpenSource.vsix
 
 For **Release**, uninstall then reinstall:
 
     VSIXInstaller.exe  /a /u:"VisualFSharp"
-    VSIXInstaller.exe /a  release\net40\bin\VisualFSharpFull.vsix
+    VSIXInstaller.exe /a release\net40\bin\VisualFSharpOpenSource.vsix
 
 Restart Visual Studio, it should now be running your freshly-built Visual F# IDE Tools with updated F# Interactive.
 
diff --git a/init-tools.cmd b/init-tools.cmd
index 2ae0ec415..f2c77a097 100644
--- a/init-tools.cmd
+++ b/init-tools.cmd
@@ -32,7 +32,7 @@ if exist "%TOOLRUNTIME_DIR%" rmdir /S /Q "%TOOLRUNTIME_DIR%"
 :: Download Nuget.exe
 if NOT exist "%PACKAGES_DIR%NuGet.exe" (
   if NOT exist "%PACKAGES_DIR%" mkdir "%PACKAGES_DIR%"
-  powershell -NoProfile -ExecutionPolicy unrestricted -Command "(New-Object Net.WebClient).DownloadFile('https://www.nuget.org/nuget.exe', '%PACKAGES_DIR%NuGet.exe')
+  powershell -NoProfile -ExecutionPolicy unrestricted -Command "$wc = New-Object System.Net.WebClient; $wc.Proxy = [System.Net.WebRequest]::DefaultWebProxy; $wc.Proxy.Credentials = [System.Net.CredentialCache]::DefaultNetworkCredentials; $wc.DownloadFile('https://www.nuget.org/nuget.exe', '%PACKAGES_DIR%NuGet.exe')
 )
 
 if NOT exist "%PROJECT_JSON_PATH%" mkdir "%PROJECT_JSON_PATH%"
@@ -48,7 +48,7 @@ if [%PROCESSOR_ARCHITECTURE%]==[x86] (set DOTNET_ZIP_NAME=dotnet-dev-win-x86.%DO
 set DOTNET_REMOTE_PATH=https://dotnetcli.blob.core.windows.net/dotnet/Sdk/%DOTNET_VERSION%/%DOTNET_ZIP_NAME%
 set DOTNET_LOCAL_PATH=%DOTNET_PATH%%DOTNET_ZIP_NAME%
 echo Installing '%DOTNET_REMOTE_PATH%' to '%DOTNET_LOCAL_PATH%' >> "%INIT_TOOLS_LOG%"
-powershell -NoProfile -ExecutionPolicy unrestricted -Command "$retryCount = 0; $success = $false; do { try { (New-Object Net.WebClient).DownloadFile('%DOTNET_REMOTE_PATH%', '%DOTNET_LOCAL_PATH%'); $success = $true; } catch { if ($retryCount -ge 6) { throw; } else { $retryCount++; Start-Sleep -Seconds (5 * $retryCount); } } } while ($success -eq $false); Add-Type -Assembly 'System.IO.Compression.FileSystem' -ErrorVariable AddTypeErrors; if ($AddTypeErrors.Count -eq 0) { [System.IO.Compression.ZipFile]::ExtractToDirectory('%DOTNET_LOCAL_PATH%', '%DOTNET_PATH%') } else { (New-Object -com shell.application).namespace('%DOTNET_PATH%').CopyHere((new-object -com shell.application).namespace('%DOTNET_LOCAL_PATH%').Items(),16) }" >> "%INIT_TOOLS_LOG%"
+powershell -NoProfile -ExecutionPolicy unrestricted -Command "$retryCount = 0; $success = $false; do { try { $wc = New-Object System.Net.WebClient; $wc.Proxy = [System.Net.WebRequest]::DefaultWebProxy; $wc.Proxy.Credentials = [System.Net.CredentialCache]::DefaultNetworkCredentials; $wc.DownloadFile('%DOTNET_REMOTE_PATH%', '%DOTNET_LOCAL_PATH%'); $success = $true; } catch { if ($retryCount -ge 6) { throw; } else { $retryCount++; Start-Sleep -Seconds (5 * $retryCount); } } } while ($success -eq $false); Add-Type -Assembly 'System.IO.Compression.FileSystem' -ErrorVariable AddTypeErrors; if ($AddTypeErrors.Count -eq 0) { [System.IO.Compression.ZipFile]::ExtractToDirectory('%DOTNET_LOCAL_PATH%', '%DOTNET_PATH%') } else { (New-Object -com shell.application).namespace('%DOTNET_PATH%').CopyHere((new-object -com shell.application).namespace('%DOTNET_LOCAL_PATH%').Items(),16) }" >> "%INIT_TOOLS_LOG%"
 if NOT exist "%DOTNET_LOCAL_PATH%" (
   echo ERROR: Could not install dotnet cli correctly. See '%INIT_TOOLS_LOG%' for more details.
   set TOOLS_INIT_RETURN_CODE=1