Can I monitor the processor time usage made by a Windows service?

You cannot directly monitor the processor time usage of a Windows service.

1.	First identify the process (its characteristics) that corresponds to this process.

2.	Then, simply add the monitoring of this process with the Process monitoring wizard.

It can be difficult to identify the process associated to a given Windows service because one single program can handle/host several Windows services and one program (e.g. svchost.exe)