attachments with mail

Question

i have a web mail application. am sending mail from gmal along with attachments. when i click send option i get this error.

Server Error in '/' Application.

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Could not find file 'C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\mail id.txt'.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.IO.FileNotFoundException: Could not find file 'C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\mail id.txt'.

Source Error:

please guide

Thanks in advance,

Regards,

Avinash