The C++ module failed to load during process initialization.

[Anonymous]

I want to get  types of plugin dll by another exe. So, I loaded the  'RevitAPIUI.dll' in revit installed path.

I started ok. Now, I don't know why give me the exception message.

[jeremy_tammik · Accepted solution]

You cannot load RevitAPI.dll or RevitAPIUI.dll yourself. Only Revit.exe can make use of those.

[Anonymous]

Thinks. The program sometimes can work on revit 2021. If it throws exception, will throw that message. I have used another way to do.