Marshal.GetActiveObject("CATIA.Application"); COMException: Invalid class string

[Talou]

Hello,

I made an automation that work fine on Windows 10.
When I put it on Windows 7 or Windows 2012. (they both have framework higher that 4.5.2 installed)
I get the following exception when doing Marshal.GetActiveObject("CATIA.Application");

Exception:
Unhandled Exception: System.Runtime.InteropServices.COMException: Invalid class
string (Exception from HRESULT: 0x800401F3 (CO_E_CLASSSTRING))
at System.Runtime.InteropServices.Marshal.CLSIDFromProgID(String progId, Guid
& clsid)
at System.Runtime.InteropServices.Marshal.GetActiveObject(String progID)
at CleanHarness.Program.Main(String[] args)


Any of you have encounter this kind of problem? (Catia is running of course)

Thank you,

Talou;

 

[tesak]

This is a quite common problem. It means that CATIA object can't be created because of incorrect registry settings. Is your CATIA running remotely from a server? If you have a local installation, probably the only solution is to reinstall it.

Tesak

https://scripts4all.eu/play-tetris-in-catia-v5-drawing-vba/

- Play Tetris in CATIA V5 drawing

 

[Talou]

Ok, Thank you Tesak. Will try a reinstallation.

T.