From 353016f92f14f97be8f971af2b9d58d8162e6b25 Mon Sep 17 00:00:00 2001
From: Hans Leidekker <hans@codeweavers.com>
Date: Thu, 10 Nov 2011 11:38:28 +0100
Subject: [PATCH] msi: Process messages while waiting for custom actions to
 complete.

---
 dlls/msi/dialog.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/dlls/msi/dialog.c b/dlls/msi/dialog.c
index 8b10215f2f2..4e908ff0d4f 100644
--- a/dlls/msi/dialog.c
+++ b/dlls/msi/dialog.c
@@ -3786,8 +3786,16 @@ void msi_dialog_check_messages( HANDLE handle )
     /* in threads other than the UI thread, block */
     if( uiThreadId != GetCurrentThreadId() )
     {
-        if( handle )
-            MsgWaitForMultipleObjectsEx( 1, &handle, INFINITE, 0, 0 );
+        if (!handle) return;
+        while (MsgWaitForMultipleObjectsEx( 1, &handle, INFINITE, QS_ALLINPUT, 0 ) == WAIT_OBJECT_0 + 1)
+        {
+            MSG msg;
+            while (PeekMessageW( &msg, NULL, 0, 0, PM_REMOVE ))
+            {
+                TranslateMessage( &msg );
+                DispatchMessageW( &msg );
+            }
+        }
         return;
     }
 
-- 
2.11.4.GIT