Upon further reading I realized that it is not the OPASERV.J Worm, but either the OPASERV.S or a Toolbar. Either way it is not required, and it should be removed.
If you do not have the most recent AV software definitions installed (You got an Old Virus, so probably not), then get them and run an AV scan. If this is a non work related PC then get the Free AVG scanner for home use.
If you are running current AV software with current definitions then it is probably the toolbar referanced here:
http://www.hijackfree.com/en/autorundetails/?command=Srv32.exe
You can remove this toolbar with either Adaware or Spybot Search & Destroy.