diff --git a/openmp/runtime/test/lit.cfg b/openmp/runtime/test/lit.cfg
--- a/openmp/runtime/test/lit.cfg
+++ b/openmp/runtime/test/lit.cfg
@@ -111,6 +111,14 @@
 if config.operating_system in ['Linux']:
     config.available_features.add('hidden-helper')
 
+# Avoid Windows heuristics which try to detect potential installer programs
+# (which may need to run with elevated privileges) and ask if the user wants
+# to run them in that way. This heuristic may match for executables containing
+# the word "patch" which is a substring of "dispatch". Set an environment
+# variable indicating that we want to execute them with the current user.
+if config.operating_system == 'Windows':
+    config.environment['__COMPAT_LAYER'] = 'RunAsInvoker'
+
 import multiprocessing
 try:
     if multiprocessing.cpu_count() > 1: