http://msdn2.microsoft.com/En-US/library/aa480189.aspx
http://windowshelp.microsoft.com/Windows/en-US/Help/7dc9c520-9d16-473d-b21b-413ac7226fb61033.mspx
http://en.wikipedia.org/wiki/Windows_CardSpace
And, yes, it's part of .Net Framework 3.0. If you don't like it, buy an iPhone to browse the net
Kees

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