import the XML file directly into tally through C# code

Question

Hi,
I want to import the data into tally from  my application. I have got a site named www.rtslink.com
for Tally integration.. they are providing a DLL through which we can Import Data in our Tally compatible xml file. I don't
want to use that DLL because they are charging for it.. i m able to convert excel file into XML file but to import
this XML file i have to depend on TALLY ..in tally they have a option of IMPORT MASTER and IMPORT TRANSCATIONS through which
how can i  send XML file to tally with server address and port number?.
how to use import the XML file directly into tally through C# code?
Plz give suggestion to me.
it's very urgent to me.