Home/ Questions/Q 963455
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-16T01:40:24+00:00

I have a C# method that is calling a C++ method. The C++ method

  • 0

I have a C# method that is calling a C++ method.
The C++ method uses WMI, so it calls CoInitializeEx(0, COINIT_MULTITHREADED) and then CoInitializeSecurity etc… before making the WMI select.
My Problem, CoInitializeEX if failing with code 2147417850 (RPC_E_CHANGED_MODE)

I tried to create a new STA thread from c# and call the c++ method from this thread (and i disabled the visual studio hosting process), no more error in CoInitilalize, but the error happens in CoInitializeSecurity (2147417831, RPC_E_TOO_LATE).

what is the best solution to correct all this?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    I removed both calls, problem solved.

    • 0