>How do you rename your class lib?
>I want to change mylib.vct/vcx to something else?

Robert,

You can just rename the files if nothing is using any of the classes. If the calsses are being used you would then have to change all references in the appropriate Classloc field of the SCX and VCX files involved. IOW, changing the name of a class lib after it is in use is not without some severe problems.