You need to change the UI culture for your application to whatever you need (in this case, Tamil).
This can be done by setting the Thread.CurrentThread.CurrentUICulture property to a CultureInfo based on the desired culture code. Tamil is "ta-IN".
You will also need to ensure the current font is capable of displaying the character set.
Have a look and play with some code based on this info, if you get stuck please give me a shout.
Also - its considered "best practice" to actually allow the user to change the culture if you are building a culture-aware application. Just because their workstation may be configured for one culture, they may want to work in another!
Good luck :)
The Developing Developer
Currently Working Towards: MCAD C#
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