Hi PritishZ,
If you want to use the Resource in Winform application, you can take a look at this sample.
Adding and Editing Resources (Visual C#)
http://msdn.microsoft.com/en-us/library/7k989cfy(VS.80).aspx
When you want to apply different theme for your application, you need to change the property of the controls on the form as well as the form. Please look at this example.
.Net Win Forms Themes
http://www.codeproject.com/KB/vb/splforms.aspx
If you need further help, please feel free to tell me.
Sincerely,
Kira Qian
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