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gh-159118: Use MTA COM initialization in _wmi to avoid crashes under load #159463

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gh-159118: Use MTA COM initialization in _wmi to avoid crashes under load #159463

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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Windows/2026-10-15-18-45-00.gh-issue-159118.wmiMTA.rst
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@@ -0,0 +1 @@
Fix a crash (``RPC_NT_INTERNAL_ERROR``) and intermittent window class failures in :mod:`!_wmi` under high concurrency and load by initializing COM as multi-threaded (MTA) instead of apartment-threaded (STA).
2 changes: 1 addition & 1 deletion PC/_wmimodule.cpp
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Expand Up @@ -67,7 +67,7 @@ _query_thread(LPVOID param)
}

if (SUCCEEDED(hr)) {
hr = CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED);
hr = CoInitializeEx(nullptr, COINIT_MULTITHREADED);
}

if (FAILED(hr)) {
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