<p>How to Connect to PickBasic database using Ole db driver .. I need it badly help me out</p>

There are tools available from www.rainingdata.com. I can't see any freeware options.
Rainingdata is now tiger logic.
http://www.tigerlogic.com/tigerlogic/
And I've been to their worldwide conferences, but I don't recall any freeware.  Its easy to program if you can stand using a dump terminal or a terminal emulation like Accuterm.  Accuterm will allow you to program with GUI interface, but you will still have a lot of fun finding the files and programs you have to use.