How can I turn SendKeys back on?

A virus got by my virus protection and my hard drive had to be wiped clean and the OS reinstalled.
Now SendKeys doesn't work.
I have a sub that checks to see if I'm on my computer and stops. That way I don't have to worry about accidentally sending the code out to a client.

Sub AnySub()
    '    questionable code
    If SomeTest then MyStop
    '    rest of the code
End Sub

Sub MyStop()
    If ThisIsMyComputer() Then
        Application.SendKeys "^+{F8}"
        Stop
    End If
End Sub

Now when it stops, the VBE has the line "Stop" highlighted instead of the next line in AnySub() and I have to hit [F8].
Any suggestions on how I can get SendKeys to start working again?