msi: Set concurrency model to multi-threaded for custom action threads.

A custom action in the office 2007 sp1 installer fails right after calling CoInitializeEx(NULL, COINIT_MULTITHREADED). This is because our code calls CoInitialize(NULL) first, which sets a different concurrency model, and a subsequent call with a different model will return RPC_E_CHANGED_MODE. Ergo, we should set the model to multi-threaded too.

msi: Set concurrency model to multi-threaded for custom action threads.
ba50d150 · Hans Leidekker · Alexandre Julliard · 3bc7bdab · ba50d150
Commit ba50d150 authored Mar 13, 2009 by Hans Leidekker Committed by Alexandre Julliard Mar 13, 2009
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custom.c dlls/msi/custom.c +1 -1

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--- a/dlls/msi/custom.c
+++ b/dlls/msi/custom.c
@@ -695,7 +695,7 @@ static DWORD ACTION_CallDllFunction( const GUID *guid )
            TRACE("calling %s\n", debugstr_w( function ) );
            handle_msi_break( function );

-            CoInitialize(NULL);
+            CoInitializeEx(NULL, COINIT_MULTITHREADED);

            __TRY
            {