>>I'm trying to call a function that returns a structure. If I just execute the function without assigning the return value to a variable there's no problem. But if I try assigning to a variable I get the message "Function argument value, type, or count is invalid."
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>I'd try setting the variable to a string equal to the length of the returned structure first. For some other info and maybe a helpful tip, try http://support.microsoft.com/default.aspx?scid=kb;en-us;181289

Mike,

Thanks for the link, the info will probably come in handy.

Peter Bennett