It would be great, if CCleaner could clean list of recent projects and files in VS. There are kept in two places in registry:
HKCU\Software\Microsoft\ViualStudio\<Visual studio version number>\FileMRUList
HKCU\Software\Microsoft\ViualStudio\<Visual studio version number>\ProjectMRUList
You can look here to see if it's in the winapp2.ini community file:
http://forum.piriform.com/index.php?showtopic=32310
If it isn't in winapp2.ini you could ask in that topic instead.
2005 and 2003 are, but not 08 10 or 12.
I'll add those
[MS Visual Studio 2008*]
LangSecRef=3021
Detect=HKCU\Software\Microsoft\VisualStudio\9.0
Default=False
RegKey1=HKCU\Software\Microsoft\VisualStudio\9.0\FileMRUList
RegKey2=HKCU\Software\Microsoft\VisualStudio\9.0\ProjectMRUList
[MS Visual Studio 2010*]
LangSecRef=3021
Detect=HKCU\Software\Microsoft\VisualStudio\10.0
Default=False
RegKey1=HKCU\Software\Microsoft\VisualStudio\10.0\FileMRUList
RegKey2=HKCU\Software\Microsoft\VisualStudio\10.0\ProjectMRUList
[MS Visual Studio 2012 RC*]
LangSecRef=3021
Detect=HKCU\Software\Microsoft\VisualStudio\11.0
Default=False
RegKey1=HKCU\Software\Microsoft\VisualStudio\11.0\FileMRUList
RegKey2=HKCU\Software\Microsoft\VisualStudio\11.0\ProjectMRUList