Connection Between Android App & VB.NET Windows application

To connect using TCP you may try out WCF but that may not be a easy thing. However you can take some inspiration from below thread.

https://stackoverflow.com/questions/1949814/cant-connect-to-wcf-service-on-android

thanks alot.. i will try 

but is it posible to connect Android app and VB.NET windows applicationvia TCP 

Step 1: Decide a format preferably json structured file using which you can exchange data between Android and VB.Net. This json format should be capable of carrying data from Android App to VB.net app and vice versa

Step  2: Build a Adapter that may be a Web Service that supports Json. This Adapter should be able to do the data transformations if needed and acts as a middle layer between VB.net and Android App.

Step 3: Android App will call this Adapter service and this adapter service will populate the data in VB.net app database.

Step 4: VB.net app will call this Adapter service and this will populate data in Android App database 

This way data exchange will happen using Adapter Service Layer.