Yes, you can delete services from that list.
I am not the expert on massaging (yes I meant massaging) services but here is what I would try.
First, disable it and make sure you don't need it.
Uninstall the software associated with it if it is still installed.
Then, if it still doesn't go away, in the registry...
**************** WARNING before messing with the registry, do a backup of the entire registry or the specific key or keys you intend to mess with. Or at least backup the branch one step up from the branch you intend to work on.
Do a search on the name of the service you want to find as it is shown in the services window. You can just put part of the name in there like NetMeeting instead of 'NetMeeting Remote Desktop Sharing'. You can also search under the exact service name rather than the display name...your choice.
Then delete the registry key located above, the NetMeeting key I used above would have this registry key shown below. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\mnmsrvc
Be careful not to delete your entire Services key of the registry.
I just read online that you can also use the sc command...here is a link to that. I would still backup that portion of the registry however. http://www.theeldergeek.com/add_a_se...windows_xp.htm