>>"Unwanted" as in "you didn't ask for this". I don't even know whether there's a vcx cleanup that you can run, it's the other way around: you compile it, and Fox packs it (as an added bonus, or side effect). I see that often in my source control, when it says my checked-out vcx/vct has grown by a couple of megabytes while I was working on it, then I compile it and then it's actually shorter than when I checked it out.
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>I didn't think that compile would pack the memo of a vcx. When you select a VCX library and then click on Modify in the IDE, there is a button that says "Clean up Class Library". Wouldn't it be what you refer to as "vcx cleanup"?

Quite possibly. Never saw that button. There are still things about Fox that I don't know :).