Please see message #1395851 and the whole thread.

>Hi All:
>
>Consider:
>
>

>*Program test.prg
>
>SET UDFPARMS TO VALUE
>
>cc = '00'
>
>DO test2 WITH cc
>
>? cc   &&Displays '11'!!!!
>
>return
>

>
>

>*program test2.prg
>PARAMETERS dd
>
>dd = '44'
>
>@ 1,1 get dd  &&user enters '11'
>
>READ
>
>

>
>Why is the value of cc in test.prg changed to '11'? I thought that when UDFPARMS is set to VALUE, the value is not changed?
>
>Thanks,
>
>Yossi