how to register a com+ component

hello
I need to be able to register a com+ componet from the command line and set what user it should run as.

To do this within window I go to adminastrative tools --> component services
The select the com+ and go to properties and then the identity tab.

But how do I do this using the command line?
Thanks in advance

Use REGSVCS.EXE. Read about it here: http://msdn2.microsoft.com/en-us/library/04za0hca.aspx