Please kindly check this link:
it might not be exactly Windows app based but should suffice to give the idea.
Thanks James, I checked it.
But can you give me more detailed learning or tutorial of web application testing included diffence between testing in web application and windows application its challenges.
I am sorry that there's no more detailed thing we can provide. I guess you should visit this forum again if you encounter any difficulty. There are a lot of experts here willing to help. 🙂
Follow the link below (It's the same link from James). There are 2 tutorials in section Printer-friendly tutorials at the very end the page. One for Windows App & the other for Web apps.
When you complete both the tutorials, I hope you would understand the differences between testing different technologies.