https://bugs.winehq.org/show_bug.cgi?id=56666
--- Comment #5 from Fabian Maurer dark.shadow4@web.de --- Used interface is "CommandBarControls" (inside vsmso.olb):
[id(0x60030001), propget] HRESULT _stdcall Count([out, retval] int* rhs);
However, it gets called with flags INVOKE_PROPERTYPUT and one parameter, which doesn't work. Not sure what it's tried to achieve here, but that is the call leads to the error message.