How to get system information?

I urgently need to get the system info ( list of hardware & software installed )

Plz provide me any links or readymade programs .

Take a look at this MSDN KB article.

Also, you could look at this article on CG.

If you want to use a singular interface that encompasses many levels of System Information then use WMI (CIMV2)

http://msdn.microsoft.com/library/de...l/anch_wmi.asp

For readymade programs related to the system information do visit http://codeproject.com/system. You'll need to register (free) to download the sample code.