offline cygwin install question

[LMH]

I have a win7 64-bit machine that is not online and I want to update the 
cygwin install. What is the best method for doing this? Can I just copy 
the current cygwin install off of my XP 32-bit machine and drop it into 
the 64-bit win7 rig, or will that create a problem?

LMH
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