There are a few differnet ways of doing it but this is what i would do.

Code:
 
If Exist ("u:\ibm\as400.kmp")
	;do nothing
Else
		MD "u:\ibm"
	Copy "s:\caccess\as400.kmp" "u:\ibm\as400.kmp"
EndIf

Exit 1
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If at first you don't succeed, try again. Then quit. There's no use being a damn fool about it. - W.C Fields