I haven't tried it but does setting a reference to the add-in in the VBE
help?

--
Jim
"Ron Rosenfeld" wrote in message
...
| Excel 2007
|
| When I start to enter a function into a worksheet cell, there is a
dropdown box
| that appears with a list of all the possible functions starting with that
| letter (letters).
|
| The same holds true if the function is a UDF that I have written in that
| particular workbook.
|
| It also occurs if the function is part of the morefunc.xll add-in.
|
| However, it does not occur if the function is a UDF coming from an
add-in -- at
| least if the add-in is an .xla file.
|
| Any solutions?
| --ron