MS has an RPC install for win98. you'll have to search technet for it. but if you install it and download systernals psexec.exe
then you can just make a batch file on your desktop:

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psexec \\<98boxname or IP> -s -i -d c:\'program files'\prog_folder

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-d will start the program in a seperate memory space allowing psexec to close and the program to keep running

-i will make the program run on the remotes desktop if it requirers a gui

if your not running as admin of the domain you may need to include '-u admin'. you'll be prompted for the pwd.

if you need info from the program using com on your 98 box and it's cmd line, pipe '|' it to netcat directing it to an NC server and port on your machine then redirect the output to a file

proggie.exe|nc -vv <your machine> < port#>

nc -L <port#> >>return.txt


but you say you want to use it....it would be so much easier if you'd just tell us what it is instead of wasting our time making guesses