Can not use ALT + C

[JoeMaster]

who can help me, unable to use "! C" hot key (ALT + C)

I want to design automatic switching network card connection speed / full duplex core, automatically switch test 1G / 100M / 10M, example is to switch 1G connection speed, In Windows7 x64 run to "!c", it cannot run. system is working)

Run("control.exe netconnections");開啟網路連線
            WinWaitActive("網路連線","")
            WinActivate("網路連線","")
            Send("{down}{up}!fr");選擇 區域連線 001
            WinWaitActive("001 內容","")
            WinActivate("001 內容","")
            Send("!c");進入設定網路卡介面
            WinWaitActive("Realtek PCIe GBE Family Controller 內容","網路介面卡")
            WinActivate("Realtek PCIe GBE Family Controller 內容","網路介面卡")
            Send("^{TAB}")
            Send("{down 6}");設定為 Init Status
            Send("{TAB}")
            Send("{up 6}");to item 1 :切換至 1G
            ;Send("{down 4}");切換至 100M
            Sleep(2000)
            Send("{Enter}")
            WinWaitActive("網路連線","")
            WinClose("網路連線","")

Thank you so much.....