Invalid class string (Exception from HRESULT: 0x800401F3 (CO_E_CLASSSTRING))

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Problem:

When ACUCOBOL-GT runtime tries to call a .Net assembly for the first time, the following error may occur:

Invalid class string (Exception from HRESULT: 0x800401F3 (CO_E_CLASSSTRING))

Resolution:

Run the following command from a DOS prompt:

marshal.exe /RegServer

You need to have machine-administrator privileges to run this command-line.

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