- got rid of include/async.h
- fixed some overlapped issues in socket handling
- moved kernel32.CancelIo implementation to ntdll

diff --git a/server/process.c b/server/process.c
index 1c04ba7..fc69e50 100644
--- a/server/process.c
+++ b/server/process.c
@@ -76,7 +76,8 @@
     process_poll_event,          /* poll_event */
     no_flush,                    /* flush */
     no_get_file_info,            /* get_file_info */
-    no_queue_async               /* queue_async */
+    no_queue_async,              /* queue_async */
+    no_cancel_async              /* cancel async */
 };
 
 /* process startup info */