I have installed VS.Net 2005 and VSIP 2005 on my laptop which have VS.net 2003 and VSIP 2003 installed. Yesterday night, when I opened my VSIP package project in VS.net 2003 and tried to compile, the output package dll could not be registered! The error message said it could not find the specified module, but it was there in the debug output folder. Then I opened Regsvr project (which seems to be the source code of regsvr32.exe) came with the VS.net 2003 to debug. When run to Loadlibrary, a error box popped up.
The output window stopped at " Loaded 'C:\WINDOWS\system32\vsassert.dll', No symbols loaded." when the error box popped. It turned out that the reason is the vsassert.dll depends on the MSVCR80.dll! VSIP 2003 installed its version of vsassert.dll in the windows\system32 folder, and VSIP 2005 overwrites it with its own version which depends on MSVCR80.dll. Then my poor package linked with vsassert.lib failed to register. :(
Beta is beta...