Hi Mohammed,
I see that Alex has already answered your question. If you question relates to .NET, you might want to post your question in the .NET forum in the future.
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Cathi Gero, CPA
Prenia Software & Consulting Services
Microsoft C# / .NET MVP
Mere Mortals for .NET MVP
cgero@prenia.comwww.prenia.comWeblog: blogs.prenia.com/cathi