Hugo,

Thanks for verifying what I'm seeing. Sometimes, one never knows with the subtle quirks of various SET settings!

Regards,
Malcolm

>>My understanding of the syntax "Do myfun with VAR [, VAR ... ]" is that it >forces the passing of variables by reference regardless of the setting of 'SET >UDFPARMS'. Do you have a different interpretation?
>
>Well, i HAD a different interpretation (I don't use UDFPARMS, as you can see:) but now i did a test and you are right.