Is there any way to Shutdown/Restart Windows using .NET
Take a look at classes available here: http://www.mentalis.org/soft/class.qpx?id=7.
Is there a easy way to query Whois information
Take a look at these classes: http://www.mentalis.org/soft/class.qpx?id=10.
Is there a easy way to add Socks Proxy support
Take a look at classes available here: http://www.mentalis.org/soft/class.qpx?id=9.
Is there a way to Ping servers using .NET
Not directly. Take a look at classes available at http://www.mentalis.org/soft/class.qpx?id=4 to do this. ICMP classes
Can I create file associations with .NET
Please take a look at classes available here: http://www.mentalis.org/soft/class.qpx?id=5.