WCF impersonation for network service with windows service as client

[tellm...@gmail.com]

Hi

I have WCF service that calls Word Interop to modify Word document. It
works fine on my machine as i have appropriate settings for Word in
dcomcnfg.

When i deploy to server (widows 2003) that has IIS 6.0, WCF service
runs under Network service account. Though i have given all the
permissions to network service for MS word, it still has some issues
as network service is low privilege account.

Is there a way i can have WCF service run under automation user
impersonation that i have created instead of network service?
Something similar to Identity impersonate = true in asp.net
web.config?

My client is windows service application that consumes WCF that i have
developed.

Any help is greatly appreciated.

Regards
Mac