[Bug 19352] Windows Live Messenger 2009 installer doesn't start

http://bugs.winehq.org/show_bug.cgi?id=19352

--- Comment #13 from Juan Lang   2009-11-05 13:29:23 ---
(In reply to comment #8)
> Then it crashes because of apparently bug in ole32. The hack below let's it
> proceed again a bit further.
>
> diff --git a/dlls/ole32/ole2.c b/dlls/ole32/ole2.c
> index 3b87aac..5f9fd09 100644
> --- a/dlls/ole32/ole2.c
> +++ b/dlls/ole32/ole2.c
> @@ -1141,7 +1141,7 @@ HRESULT WINAPI OleLockRunning(LPUNKNOWN pUnknown, BOOL
> fLock, BOOL fLastUnlockCl
>      return hres;
>    }
>    else
> - return E_INVALIDARG;
> - return 0;//E_INVALIDARG;
>
> }

Actually, this might be correct.  0 is S_OK, and this branch happens when the
IUnknown passed to OleLockRunning doesn't implement IRunnableObject.  A quick
test with an empty IUnknown would tell you what windows does in this case.