I suggest, that if you know where the files need to go and what to update with in the system, you can use a freeware piece of software called Inno Setup compiler, which will allow you to build, rather easily, a setup.exe program. If your VBA needs DLLs registered on the system it can handle that and registry read/writes and the whole 9 yeards. I love it. But make sure you get the Tools as well, it gives you a nice drag and drop gui that makes life easy. Even creates an uninstaller too, if you like.
Anyway the site for inno is located here:
http://www.innosetup.com/ You want to download the ISPack (quick start kit) and make sure to install the ISTool editor, that's the GUI add on.
