Hi Biswas,
Please check the Visual C++ Package in your windows 7 machine and update accordinlgy.
Install the Microsoft Visual C++ Redistributable package from the following link.
http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26347
Be sure to choose the package that is appropriate to your CPU architecture, ie. 32-bit vs 64-bit.
Thanks,
Daya