guyz again....

For our webservice application, we have the webservice running in our cmpany webserver. Also we are implementing a client application which will invoke this webservice and this client application has to be supplied to our customers. basically the duty of client application is to transfer a xml file to the webservice. How can I implement this client in a light weight manner.

if I use VS.Net, I need to make sure .net framework also supplied(?, or any more runtime?). I want to make this client app as small as possible.
Any suggestion?!!

Thnx!!