Totally disable the Windows key in freerdp. This is to works around a long standing issue where it appears the Window key is "stuck" causing explorer and run windows to pop open, accidental screen locks, and all sorts of unintended Windows actions. This only changes the freerdp under X11. WARNING: MASSIVE HACK!!!

disablewindowskey.patch

diff --git a/client/X11/xf_keyboard.c b/client/X11/xf_keyboard.c
index e6427e1..81e95bb 100644
--- a/client/X11/xf_keyboard.c
+++ b/client/X11/xf_keyboard.c
@@ -100,6 +100,15 @@ void xf_kbd_send_key(xfContext* xfc, BOOL down, BYTE keycode)
        input = xfc->instance->input;
        rdp_scancode = freerdp_keyboard_get_rdp_scancode_from_x11_keycode(keycode);
 
+  /*
+   * Giant hack to disable Windows keys
+   * http://social.technet.microsoft.com/Forums/en-US/cbaae74e-8311-4a46-a842-31dcdd6878dc/windows-key-stuck
+   */
+  freerdp_input_send_keyboard_event_ex(input, FALSE, RDP_SCANCODE_LWIN);
+  freerdp_input_send_keyboard_event_ex(input, FALSE, RDP_SCANCODE_RWIN);
+       if (rdp_scancode == RDP_SCANCODE_LWIN || rdp_scancode == RDP_SCANCODE_RWIN)
+    return;
+
        if (rdp_scancode == RDP_SCANCODE_UNKNOWN)
        {
                fprintf(stderr, "Unknown key with X keycode 0x%02x\n", keycode);