>Does anyone know if the _crypt.vcx class in VFP 7 requires or depends on anything special as far as windows goes. Does it require a certain version of windows, if it works on all version 95 and higher, does it require any special DLLs that may not be installed by default? > Ithnik this article answers your question http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnfoxtk00/html/ft00f10.asp