From Lookout 6.1 developer's manual, it doesn't support win98. This means the Lookout dev/runtime software, as well as the Lookout client, Lookout Player, don't support win98.
 
OS requirements: Windows 2000, Windows NT version 4 or later with service pack 6, Windows XP, Windows Vista
					
				
			
			
				
	Ryan Shi
National Instruments