diff -r b2f272e0c51e -r 7434ef155a3a pidgin/win32/gtkwin32dep.c
--- a/pidgin/win32/gtkwin32dep.c	Sun Feb 11 00:30:48 2007 +0000
+++ b/pidgin/win32/gtkwin32dep.c	Sun Feb 11 00:46:43 2007 +0000
@@ -49,6 +49,7 @@
 #include "gtkwin32dep.h"
 #include "win32dep.h"
 #include "gtkconv.h"
+#include "util.h"
 #include "wspell.h"
 
 /*
@@ -192,14 +193,20 @@
 	winpidgin_shell_execute(uri, "open", "http");
 }
 
-#define WM_FOCUS_REQUEST (WM_APP + 13)
+#define PIDGIN_WM_FOCUS_REQUEST (WM_APP + 13)
+#define PIDGIN_WM_PROTOCOL_HANDLE (WM_APP + 14)
 
 static LRESULT CALLBACK message_window_handler(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) {
 
-	if (msg == WM_FOCUS_REQUEST) {
+	if (msg == PIDGIN_WM_FOCUS_REQUEST) {
 		gaim_debug_info("winpidgin", "Got external Buddy List focus request.");
 		gaim_blist_set_visible(TRUE);
 		return TRUE;
+	} else if (msg == PIDGIN_WM_PROTOCOL_HANDLE) {
+		char *proto_msg = (char *) lparam;
+		gaim_debug_info("winpidgin", "Got protocol handler request: %s\n", proto_msg ? proto_msg : "");
+		gaim_got_protocol_handler_uri(proto_msg);
+		return TRUE;
 	}
 
 	return DefWindowProc(hwnd, msg, wparam, lparam);