Try it like this:
Click Start>Run and type in: services.msc
Click OK
In the Services window find:
Remote Packet Capture Protocol
Select/highlight and right click the entry, and choose: Properties
On the General tab, under Service Status click the Stop button
Beside: Startup Type, in the drop menu, select: Disabled
Click Apply, then OK
Open
HJT and click config > misc tools > ?delete an NT service?
Copy and past:
rpcapd
Click OK.
and see if it still comes back.