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i want to retrieve the list of user and local service and network service
You can do this via WSH. Here is an example in JavaScript: http://www.winscripter.com/WSH/ADSI/56.aspx
and a sample in C#: http://www.geekzone.co.nz/chakkaradeep/3938
I found several answers on BING by searching win32 list user accounts
And finally a sample from Microsoft: http://gallery.technet.microsoft.com/ScriptCenter/en-us/827623f5-eb55-4035-8f57-25c4afb444cd