Is there a way to check if a file exists in a directory on a computer via kixtart?

I have a script that checks for a file version, but if the file doesn't exist in the first place the script won't copy the newer file to the directory.

Here's the script I have for checking file dates and copying the latest file to the local computer.
Code:
 
if ingroup ("BPSusers")
	$Result = CompareFileTimes("x:\apps\accapps\05-06\bps_0506.adp", "c:\accapps\bps_0506.adp")
		IF $Result = 1 
 			COPY "x:\apps\accapps\05-06\bps_0506.adp" "c:\accapps\bps_0506.adp"
		ENDIF
endif


Matthew