Lock the computer using command line (Start -> CMD)

    rundll32.exe user32.dll, LockWorkStation

You might also want to check the following website for additional methods.
http://pubs.logicalexpressions.com/pub0009/lpmarticle.asp?id=70

If you are tired of searching through 3 millions sites to get some basic whois information

, maybe you want to just download a tool and do it on your local computer.

Advantage
1. Faster
2. No more searching
2. No Ads
3. Ability to save the information to text files

These Tools are :

http://www.gena01.com/win32whois/download.shtml

http://www.barisione.org/files/WinWhoisSetup.exe

Note:
Note that YCSoftware is not affiliated with the makers of these tools. They just happen to have a good tool that deserve some press. Check them out and post your comments.

I remember back in the days (2005) when I used to use  a very popular website to query DNS information.

The information was very easy to find and queries were very fast.

However,  it was a matter of time before they got greedy and wanted to charge for simple DNS queries.

I found this windows tools and it works for me whenever i want to get basic DNS information and hopefully it will do the same for you.

http://www.nirsoft.net/utils/dns_records_viewer.html

Note that YCSoftware is not affiliated with the makers of these tools. They just happen to have a good tool that deserve some press. check them out and post your comments.

Here are the commands:

1. Hold Down the ALT key + Spacebar key

2. While Holding the above keys Down, Press the letter "M" 

3. Then release all Keys

4. Now user the Arrow keys to move the pop up window.