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invalid class error after SW trial installation

Question asked by Thomas Endlich on Aug 22, 2017

Hi,

 

after the installation of a trial version of SW I tried to open eDrawings software. Unfortunately eDrawings didn't start and I saw an error:
"Application Exception
Invalid class"

 

Here is a screen:

invalid-class.jpg

I am using Windows 7 Professional operating system.


Anybody knows how can I fix this error?

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