msi: Only check the file signature if the candidate file is not a directory.

dlls/msi/appsearch.c

@@ -760,18 +760,17 @@ static UINT ACTION_RecurseSearchDirectory(MSIPACKAGE *package, LPWSTR *appValue,
     hFind = FindFirstFileW(buf, &findData);
     if (hFind != INVALID_HANDLE_VALUE)
     {
-        BOOL matches;
-
-        /* assuming Signature can't contain wildcards for the file name,
-         * so don't bother with FindNextFileW here.
-         */
-        rc = ACTION_FileMatchesSig(sig, &findData, buf, &matches);
-        if (rc == ERROR_SUCCESS && matches)
+        if (!(findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
         {
-            TRACE("found file, returning %s\n", debugstr_w(buf));
-            *appValue = buf;
-        }
+            BOOL matches;
 
+            rc = ACTION_FileMatchesSig(sig, &findData, buf, &matches);
+            if (rc == ERROR_SUCCESS && matches)
+            {
+                TRACE("found file, returning %s\n", debugstr_w(buf));
+                *appValue = buf;
+            }
+        }
         FindClose(hFind);
     }
 

dlls/msi/tests/package.c

@@ -7163,10 +7163,7 @@ static void test_appsearch_drlocator(void)
     size = MAX_PATH;
     r = MsiGetPropertyA(hpkg, "SIGPROP6", prop, &size);
     ok(r == ERROR_SUCCESS, "Expected ERROR_SUCCESS, got %d\n", r);
-    todo_wine
-    {
-        ok(!lstrcmpA(prop, ""), "Expected \"\", got \"%s\"\n", prop);
-    }
+    ok(!lstrcmpA(prop, ""), "Expected \"\", got \"%s\"\n", prop);
 
     size = MAX_PATH;
     sprintf(path, "%s\\one\\two\\three\\FileName2", CURR_DIR);