Link:
http://stackoverflow.com/questions/4315681/how-to-change-ipch-path-in-visual-studio-2010
Reference:
The ipch folder is created by the IntelliSense system and it's location cannot being changed on A per-solution basis. However, you can have VS. Store all of your projects ' ipch folders in your %temp%\vc++ Folde R. Select Tools > Options > Text Editor > c/c++ > Advanced . Once there, you'll see a Fallback location section. Change Always use Fallback location to True . Leave Fallback Location blank and it'll put them in your %temp% folder. Once you ' ve changed so, you can remove your ipch folder and your *.sdf & *.opensdf files. They is recreated in the Fall-back. Note, want to backup those files if you are picky about the window layout, etc for the project.
Visual Studio:how to change ipch path in Visual Studio (. sdf, *.OPENSDF, ...)