From: "James C. Sewell" 
Skip Gore, whom God loves, said:
  Hi Gang,
  Anyone have any idea as to how high I can boost the x = in this macro
  without it crashing?
  PushKey()
You can only push 64 keys into the buffer using PushKey.  After that I
don't know if it will crash or just give bad results, but either is
unacceptable so I would say that's your limit.
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