How can I enter in a long Command using the run DOS command function from winautomate? it truncates it. do i need to store that string as a variable? then run that variable?

example. I want to run something like this on a Dos command line

C:\>"C:\Program Files\GSplit\GSplit.exe" "C:\Documents and Settings\SYu\Desktop\Automation\Stuff\LargeSample.txt" -c-go-s-t-l "C:Documents and Settings\SYu\Desktop\Automation\Stuff\CignaSplitProfile.gsc" "C:\Log.txt"

thanks a bunch.