>Hi, would anyone know if a VFP5.0 version of this excellent Visual Foxpro library file is available anywhere or where I could contact either Roy.L.Gerber (VFP3 version author) or someone who can guide me on how to "rebuild" this library for VFP5.0.

Probably over on Compuserve. The library coes with his CIS address doesn't it?

If so, you can mail to his address - replace the "," between the numbers with "." and add "@compuserve.com" to the end.
I'm 104074.3277@compuserve.com for example.

I think I've seen CIPHER50.FLL about.