Try REINDEX instead of PACK (wild guess)
I have seen others mention using Refox for this.

>Can you help me?
>
>I have my base classes in cinsoft.vcx, when I issue a rebuild all I get the error "cinsoft.vct is invalid", I opened the vcx as a table and done a PACK, and still the same error!
>
>In the class browser I can see the code, and with a browse in the class I can see the properties,...
>
>With the utility CM Repair from the files section I get all ok???