Question : Get client computer name or client user name

I had a web site running with ASP.
I want to know who visit my site. Instead of knowing their IP address, how can i get the client Computer name or User Name..

Eg. Tom surf my site through IE browser, and i would like to log down Tom' PC info like Computer name and User Name...
so what i expect to have once he click on my Page is: (for example)
Computer Name: Tom_PC
User Name: TOM

Many Thanks

Answer : Get client computer name or client user name

ieckhaa,

You can't, and if you could, you would have found a security hole and it would be fixed quickly.

For the information you want to have, you need permission from the user to get it. Either just ask it in a form, or ask permission to install some ActiveX or so on the client that will do the job.