Bruce & Marcel --

Thanks for the input -- really appreciated it. I tested the 'keys' using the Win32 api (Windows NT 4.0) and those with ADAPI.dll (Windows 2000 Professional) and found they worked worked for both API's. Thas meant that it had to be something in the coding -- I found the following:

IF PCOUNT() >= 1 AND TYPE("tnMainKey") == "N"
this.nMainKey = tnMainKey
ELSE
*this.nMainKey = HKEY_CURRENT_USER
this.nMainKey = 1
ENDIF

When I reversed the comment, then the app 'reached' the registry.

Again, thanks for the support -- you let me know that I was on the right track and allowed me to proceed with some degree of confidence.

I am currently trying to run down another anomoly (sp?) and as soon as I isolate as many of the variables as I can, I'll be back.

DWW