diff --git a/host/platform/Windows/src/service.h b/host/platform/Windows/src/service.h
index 28cc780f..ca85893d 100644
--- a/host/platform/Windows/src/service.h
+++ b/host/platform/Windows/src/service.h
@@ -1,3 +1,12 @@
 #include <stdbool.h>
 
+// exit code for user opted to exit looking-glass-host
+#define LG_HOST_EXIT_USER    0xfee1dead
+// exit code for capture errors that should result in a restart, e.g. UAC
+#define LG_HOST_EXIT_CAPTURE 0xdead0000
+// exit code for terminated
+#define LG_HOST_EXIT_KILLED  0xdeadbeef
+// exit code for failed to start
+#define LG_HOST_EXIT_FAILED  0xdeadbaad
+
 bool HandleService(int argc, char * argv[]);