>Does anyone know of a VSS add-on or replacement which will allow multiple developers to work on classes in a common library? We are having a devil of a time working with three versions of our software with a half dozen or so programmers working on many classes in several libraies in three versions simultaneously. We have been using VSS and cannot split up the libraries constantly for work distribution.

In my opinion this isn't a SCC issue. The library structure itself is the limiting factor. Yes, you can set up VSS to do multiple check outs, but that doesn't help with the occassion of two developers working on two different classes in the same VCX. It's really sort of the same thing as two programmers changing two different procedures in the same PRG.

The simplest solution is to divide up responsibilities by library, and probably split off classes into different libraries.

That said, a VCX is, of course, different from a PRG since it's a table, and we certainly allow multi-user access to tables in our programs, so it should be theoretically possible to do the same thing with classlibraries.