Add window specific stuff

diff --git a/util b/util
index 26c870998fb67d5e0eaa8a46b7cde4d5745de40f..9d00d9e59ff50c4d94758ab5e5ababc5ec63f7cf 160000 (submodule)
--- a/util
+++ b/util
@@ -1 +1 @@
-Subproject commit 26c870998fb67d5e0eaa8a46b7cde4d5745de40f
+Subproject commit 9d00d9e59ff50c4d94758ab5e5ababc5ec63f7cf