Home Forums General XMetaL Discussion Unable to cast COM object of type ‘XMetaL.ApplicationClass’ to interface type Reply To: Unable to cast COM object of type ‘XMetaL.ApplicationClass’ to interface type

Derek Read

Reply to: Unable to cast COM object of type ‘XMetaL.ApplicationClass’ to interface type

APIs have not changed. In general, unless we specifically deprecate something (which has only occurred once so far, when an entire feature was effectively discontinued due to something outside of our control) existing APIs remain the same with each release.

There are two possibilities that I can think of:

1) XMetaL Author may not be registered as a COM server. This is normally set up automatically by our installer. If that has failed for some reason you may need to run the following at a command prompt:
xmetal70.exe /RegServer

2) If that is not the issue you may also try to re-import the TLB file provided with the installation into your .NET build project.

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