diff --git a/dlls/msi/suminfo.c b/dlls/msi/suminfo.c
index 8c844a6a6cd..d2bf678853b 100644
--- a/dlls/msi/suminfo.c
+++ b/dlls/msi/suminfo.c
@@ -600,7 +600,25 @@ UINT WINAPI MsiSummaryInfoGetPropertyCount(MSIHANDLE hSummaryInfo, PUINT pCount)
 
     si = msihandle2msiinfo( hSummaryInfo, MSIHANDLETYPE_SUMMARYINFO );
     if( !si )
-        return ERROR_INVALID_HANDLE;
+    {
+        MSIHANDLE remote;
+        UINT ret;
+
+        if (!(remote = msi_get_remote( hSummaryInfo )))
+            return ERROR_INVALID_HANDLE;
+
+        __TRY
+        {
+            ret = remote_SummaryInfoGetPropertyCount( remote, pCount );
+        }
+        __EXCEPT(rpc_filter)
+        {
+            ret = GetExceptionCode();
+        }
+        __ENDTRY
+
+        return ret;
+    }
 
     if( pCount )
         *pCount = get_property_count( si->property );
@@ -1127,3 +1145,8 @@ UINT msi_load_suminfo_properties( MSIPACKAGE *package )
     msiobj_release( &si->hdr );
     return r;
 }
+
+UINT __cdecl s_remote_SummaryInfoGetPropertyCount( MSIHANDLE suminfo, UINT *count )
+{
+    return MsiSummaryInfoGetPropertyCount( suminfo, count );
+}
diff --git a/dlls/msi/tests/custom.c b/dlls/msi/tests/custom.c
index 0ba5f10c88d..eb0ed625ef7 100644
--- a/dlls/msi/tests/custom.c
+++ b/dlls/msi/tests/custom.c
@@ -456,14 +456,11 @@ static void test_db(MSIHANDLE hinst)
     ok(hinst, !r, "got %u\n", r);
 
     r = MsiSummaryInfoGetPropertyCount(suminfo, NULL);
-todo_wine
     ok(hinst, r == RPC_X_NULL_REF_POINTER, "got %u\n", r);
 
     count = 0xdeadbeef;
     r = MsiSummaryInfoGetPropertyCount(suminfo, &count);
-todo_wine
     ok(hinst, !r, "got %u\n", r);
-todo_wine
     ok(hinst, count == 5, "got %u\n", count);
 
     r = MsiSummaryInfoGetPropertyA(suminfo, 0, NULL, NULL, NULL, NULL, NULL);
diff --git a/dlls/msi/winemsi.idl b/dlls/msi/winemsi.idl
index 50f62fcbfd8..5a14ffdb796 100644
--- a/dlls/msi/winemsi.idl
+++ b/dlls/msi/winemsi.idl
@@ -74,6 +74,8 @@ interface IWineMsiRemote
     UINT remote_DatabaseGetSummaryInformation( [in] MSIHANDLE db, [in] UINT updatecount, [out] MSIHANDLE *suminfo );
     UINT remote_DatabaseOpenView( [in] MSIHANDLE db, [in, string] LPCWSTR query, [out] MSIHANDLE *view );
 
+    UINT remote_SummaryInfoGetPropertyCount( [in] MSIHANDLE suminfo, [out] UINT *count );
+
     MSIHANDLE remote_GetActiveDatabase( [in] MSIHANDLE hinst );
     UINT remote_GetProperty( [in] MSIHANDLE hinst, [in, string] LPCWSTR property, [out, string] LPWSTR *value, [out] DWORD *size );
     UINT remote_SetProperty( [in] MSIHANDLE hinst, [in, string, unique] LPCWSTR property, [in, string, unique] LPCWSTR value );