C: drive and A: drive

[Ghost]

How would i make a macro compatible to run a program from a shortcut from both c and a drive..
Macro

Code:

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run "$program files$\LimeWire\LimeWire.exe" "" "" "*" ;;LimeWire PRO 4.18.3

Once i send it to my other computer it wont run this file... gives me an error... was wondering how i could make it so that no matter what computer that im on it will still start the program that i want to.. plus one PC is XP and the other one Vista...
Thanks for all the help!