Add PATHEXT to default env vars in windows

timesler · web-flow · commit f5823cbef2c0 · 2025-08-09T14:51:11.000-07:00
The PATHEXT env var is required for the subprocess to be able to find many executable and other files
diff --git a/src/mcp/client/stdio/__init__.py b/src/mcp/client/stdio/__init__.py
@@ -32,6 +32,7 @@
         "HOMEPATH",
         "LOCALAPPDATA",
         "PATH",
+        "PATHEXT",
         "PROCESSOR_ARCHITECTURE",
         "SYSTEMDRIVE",
         "SYSTEMROOT",
