Here's one a little smaller (i hope).

It doesn't seen to find the file using the %Systemroot% variable.

Code:
 Function TempArray($KBNumber)
	Break on
	$arrayfilehandle = FreeFileHandle()
	$filename = "$ScriptDir\UpdateFileList\" + $KBNumber + ".csv"
	If Open($arrayfilehandle,$filename) = 0 
		$line = ReadLine($arrayfilehandle) 
		While @error = 0  
			$array = Split($line,",")
			$FileNameCheck = $array[0] 
			$FileVerCheck  = $array[1]
			If GetFileVersion($FileNameCheck,"FileVersion") < $FileVerCheck 
				? 'Error '+@ERROR+' - '+@SERROR
			 ? "$FileNameCheck;$FileVerCheck"
				Sleep(1)
				$NeedUpdate = 'Y'
				$TempArray = $NeedUpdate
			EndIf
			$line = ReadLine($arrayfilehandle) 
		Loop 
	$= Close($arrayfilehandle)
	endif
EndFunction


Here's what the .csv file looks like.
    %SystemRoot%\System32\Catsrv.dll,2000.2.3511.0
    %SystemRoot%\System32\Catsrvut.dll,2000.2.3511.0
    %SystemRoot%\System32\Clbcatex.dll,2000.2.3511.0


And here's some logging information:
    Error 2 - The system cannot find the file specified.
    %SystemRoot%\System32\Catsrv.dll;2000.2.3511.0
    C:\WINNT\System32\Catsrv.dll
    Error 2 - The system cannot find the file specified.
    %SystemRoot%\System32\Catsrvut.dll;2000.2.3511.0
    C:\WINNT\System32\Catsrvut.dll
    Error 2 - The system cannot find the file specified.
    %SystemRoot%\System32\Clbcatex.dll;2000.2.3511.0
    C:\WINNT\System32\Clbcatex.dll