An error after installing VS2008 and create ANY new project.
"Could not load file or assembly CustomMarshalers, Version=2.0.0.0 etc"
This is because some file was not installed into the GAC
Use VS2008 command prompt and type
c:\>gacutil -i C:\Windows\Microsoft.NET\Framework\v2.0.50727\CustomMarshalers.dll
to solved the issue.
source : http://itcodemonkey.blogspot.com/2009/07/could-not-load-file-or-assembly.html