Data acquisition, spell checker, GUI

Question

I have searched a lot and also read many articles those of Mr.Mahesh Chand also). But was unable to get adequate information or tutorial for programming in c# .net for i.e. 1. Data aqcuisition for instance How to get data from modem connected thorugh usb and show data speed on screen, 2. I want to design indian language spell checker for microsoft word but have not found information at all on net 3. How to show line art or bitmap on screen so that user may drag or move it. 4. Converting bitmap image into line art

If any of you have any of the information for development in c# .net please provide the information or link. I will be very much thankful to you. (It might be possible that I may not be able to search efficiently).

Thanks