I have an add-in in Excel that calls the LCase function. This add-in works
when I am using Windows XP and Office 2003. It also works if I use Windows XP
and Office 2007. However, when I use Windows Vista and Office 2007 I get the
following error:

"Compile error: Can't find project or library"

Does anyone know why this is happening? If I remove the LCase call then I
get the same error when it gets to the a call to ChrW.

I need to figure this out ASAP so any help is greatly appreciated.