Hello brothers, I am currently developing Single PC application in vb.net 2008 and Mssql Express 2005.

  1. what are the Software I need on development Computer? to start develop application which can run on a main Computer and also from other Computers on LAN ( simple windows xp and windows xp Os Network )
  2. The application should run from any computer on Network and Data must same on main Computer where my application will install.

Please help me .....

Could be wrong, but my testing with vb.NET 2012 indicates MSSql Express can only run locally. I think you would need MSSQL Server (not the express version) to do what you want.