Hi Ivan,No, it's a local drive and the same drive I have used for this purpose for over a year.
I have now managed to get them into the GAC, but I had to do it manually. It seems that the path that is passed in the afterbuild.bat isn't correct in some way.
I took the path provided by the error in VS 2008 and copied that to a command window and ran afterbuild.bat from there and it worked ok.
thanks
Geoff