Integrate Sage Line 50 with windows application

Question

I have to integrate C# Windows application with Sage Line 50. (To send all invoice details from application to Sage).

I searched on Google and most of the places it says

Answer 1

You may find my product PostTrans which imports data from excel of use. By using excel you can easily add you own code/macros/formula to manipulate data before posting into the Sage 50 accounts, with full validation and in cell search for codes.

idaea for data entry, or import of external data. see http://www.posttrans.co.uk/

Sorry for the advert, but may be of help ;_)