As far as I can detect all machines are the same that excelDna is being used on.
On one specific machine I tried to use the code I have created, and ran into an issue. Logically I thought this was odd and instead tried to add a sample file that comes with the download.
So now, I am trying Errors.xll/Errors.dna that come as a sample. The same error occurrs. Therefore to me there is an issue on this specific machine.
The error I am receiving is "a problem occurred while an add-in was being initialized (InitialIntegration failed). The add-in is built with ExcelDna and is being loaded from P:\xlDna\Distribution\Errors.xll"
Has anyone encountered this? Help needed to understand why this is happening as it seems quite opaque to debug.