Python script xml-rpc to C# xml-rpc script

[Ymtrader]

If anyone is fluent in python as well as C# using the cook computing xml-rpc.net library I could really use some help.  I have been trying to write a C# program to access upcdatabase.com without much luck. I have a working python script. Would anyone be willing to show me the C# equivalent to this python script might be. Thank you

#!/usr/bin/env python
#
#

import sys
from xmlrpclib import ServerProxy, Error

rpc_key = 'enter rpc_key here'

if __name__=='__main__':
	if len(sys.argv) != 2:
		print 'Usage: fetchupc.py <upc>'
		exit
	else:
		s = ServerProxy('http://www.upcdatabase.com/xmlrpc')
		params = { 'rpc_key': rpc_key, 'upc': sys.argv[1] }
		print s.lookup(params)