Try This in win98 My Computer{Control Panel|System|Device Manager|Ports|Communication Port(com1)| Properties|Resources(tab) Check with yellow ! Cheers Peter C. Paul H. Christidis <[log in to unmask]> wrote in message news:F4B1826B1A21D211AEC5006008207AF4011F3312@dogbert.csillc.com... > Fellow Listers, > > I'm still trying to get our DTCMGR 'station' operational. I may have some I/O > address range conflict and I was wondering if there is a way in Win'98 to 'view' > what modules are utilizing specific I/O addresses. > > Regards > Paul Christidis >