Has any of you seen the returnvalue "Duplicate Trans Guarantee key" of function ParseExecFunction(..)?
it could have nothing to do with OLE: could also be returned by the function server.
It looks like I'm getting this error when calling the ParseExecFunction too quickly after each other.

I have not seen that error, but I know when I was playing with OLE I did get error(and I do not remember what it was) where I had to put in a pause for it to clean up and work on the next statement.

mark,
thanks for your reply

I found it: it's inside ituddc0010 - an include that's needed by DDC in 3GL scripts. Each time it's checking table tuddc130.
Somehow one function in a function server seems to keep it's guarantee key.

Thanks anyway.