Question : how can i get Hard Disk Serial number (unique) in C#.net web application ??

how can i get Hard Disk Serial number (unique) in C#.net web application ??

Answer : how can i get Hard Disk Serial number (unique) in C#.net web application ??

Use WMI.
This simple example shows you how to use WMI to get the actual physical disk information:

http://www.geekpedia.com/tutorial233_Getting-Disk-Drive-Information-using-WMI-and-Csharp.html