Bruce Wheeler quotes Mark Hammond with a different version of the
last patch to this file: use pathLen, not bufSize, as the initializer.
diff --git a/PC/import_nt.c b/PC/import_nt.c
index b506694..bed057f 100644
--- a/PC/import_nt.c
+++ b/PC/import_nt.c
@@ -54,7 +54,7 @@
 	moduleKey = alloca(bufSize); 
 	sprintf(moduleKey, "Software\\Python\\PythonCore\\%s\\Modules\\%s%s", PyWin_DLLVersionString, moduleName, debugString);
 
-	modNameSize = bufSize;
+	modNameSize = pathLen;
 	regStat = RegQueryValue(keyBase, moduleKey, pathBuf, &modNameSize);
 	if (regStat!=ERROR_SUCCESS)
 		return NULL;