Torben,
Just a guess: Are you sure the user is using the correct function names ?

NickHK

"Torben Laursen" wrote in message
...
I have A COM add-in for Excel 2003 that is beeing used without any
problems
on a number of computers.

However one of my customers cannot get it to work.
When he tryes to call one of the UDF in the COM he get the error: #NAME.

The COM seens to be installed correct. It addes a menu to Excel and he can
use the winforms that are in the COM.
Also there is no disabled items in Excel (Under Hep/About/Disabled items)
So everything seems to work except the user defined functions inside the
COM

Can anyone give me any hints about how I solve this problem?

Thanks
Torben