how to add a include path to visual studio using nsis?

does anyone knows how can I make my nsis installer update visual studio include path with my sdk paths?

Solution

In next text I assume you use Visual Studio 2008.

If you want to directly change the paths you must modify file %LOCALAPPDATA%\Microsoft\VisualStudio\9.0\VCComponents.dat.

There is no need to write keys into registry, because directories are saved here.

Use this NSIS code to add directory C:\YOUR DIRECTORY HERE into it:

Function Write
SetShellvarContext current
ReadIniStr $0 "$LOCALAPPDATA\Microsoft\VisualStudio\9.0\VCComponents.dat" "VC\VC_OBJECTS_PLATFORM_INFO\Win32\Directories" "Include Dirs"
WriteIniStr "$LOCALAPPDATA\Microsoft\VisualStudio\9.0\VCComponents.dat" "VC\VC_OBJECTS_PLATFORM_INFO\Win32\Directories" "Include Dirs" "$0;C:\YOUR DIRECTORY HERE"
IfErrors Error NoError
Error:
  MessageBox MB_OK "Cound not write!"
NoError:
FunctionEnd

Be carefull with this because there are many options. Ini typically looks like this:

[PLATFORM]

Directories=Dir1;Dir2;$(VSVariable)path

Above example writes directory into Win32 and Include files. See the picture to understand it.

enter image description here

For Visual Studio 2010 the format has been changed (to XML): http://blogs.msdn.com/b/vsproject/archive/2009/07/07/vc-directories.aspx