I'll keep that in mind and in the mean time I'll try checking out Perforce. Peter started me thinking and I'll be posting to him my though just in case you'd want to take a look at it.

>>Thanks Hilmar. Is it practicle to manually check out modules. My experience is such that the chnges I make ae on a needs basis and checking out a PRG in the middle of a thought process, I don't think it'll last long with me, if at all I remember. Does VSS work for DBF structures though not always but frequently I have to change data structures.
>
>VSS - or other source control software, for that matter - does not work well for data structures. You need some workarounds here.
>
>What I currently do is keep an empty (no data) version of the database. Here I make my changes. Also, I have a program that combines the empty (new) structure with the old data. But this doesn't have much relation to VSS.
>
>Hilmar.