Removing DEAS

Any help highly appreciated…We have previously installed DEAS 6 on our Domino server, but we now want to completely remove the product. DEAS was installed while the server was running Domino 6.5. Since then, the server has been upgraded to Domino 7.02. I have been searching in the NOTES.INI, under the Windows services, no sign of any command starting DEAS, still the service is started every time Domino is restarted. Can anyone help me get rid of this service?