What's the code of your UDF and how exactly do you call it? With what values?

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Kind regards,

Niek Otten
Microsoft MVP - Excel

"Andrew Wiles" wrote in message ...
|I have an automation add-in which works fine on my UK English configuration.
| If I change the regional language settings in the control panel to Danish the
| UDF fails and returns #VALUE!.
|
| I have simplified this problem down to the point where the UDF is simply
| returning a string so the problem cannot (I think) be in the UDF processing.
|
| I am somewhat stumped as to where to go to resolve this problem.
|
| Any thoughts?
|
| Configuration is Excel 2007 on Vista x64