Hi, I have a COM DLL which I developed in Visual Studio. It works perfectly in Excel 2010 but when I do the identical call from Excel 2016 I get an error “Class not registered”. Both versions of Excel are installed on the same computer. I’m at a complete loss at why it will work in one version of Excel but not in the other. I tried reinstalling Office, registering (RegAsm) my dll but no luck.
Any help would be greatly appreciated.↧