Hello Barry,
No, it doesn't need to be downloaded but upon occasion the COM Add-in
needs a jump start.
The Compare Project Versions is actually a COM Add-in file named
compprj.dll. Try the following:
Tools > Customize > Toolbars.
In the customize dialog box, select the Commands tab.
In the Categories: list scroll to find All Commands.
Click on All Commands and in the Commands: list on the right find
ComAddInsDialog.
Drag that command to a toolbar.
Click the COM Add-Ins... toolbar button and you should see the list of
add-ins.
My installation shows the following when I select the Compare Project
Versions Utility:
C:\Program Files\Microsoft Office\Office12\COMPPRJ.DLL
Try removing and then adding the file.
I hope this helps. Let us know how you get along.
Julie
Project MVP
Visit
http://project.mvps.org/ for the FAQs and additional information
about Microsoft Project