WIXBUG:3869 FilterResult needs to apply MB_TYPEMASK to dwAllowedResults.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/engine/userexperience.cpp b/src/engine/userexperience.cpp
index dd59a431..6b0e3bf5 100644
--- a/src/engine/userexperience.cpp
+++ b/src/engine/userexperience.cpp
@@ -1973,12 +1973,13 @@ static int FilterResult(
     __in int nResult
     )
 {
+    DWORD dwFilteredAllowedResults = dwAllowedResults & MB_TYPEMASK;
     if (IDNOACTION == nResult || IDERROR == nResult) // do nothing and errors pass through.
     {
     }
     else
     {
-        switch (dwAllowedResults)
+        switch (dwFilteredAllowedResults)
         {
         case MB_OK:
             nResult = IDOK;