To lock your desktop with just two mouse clicks. (Windows XP)

To lock your XP works-tation with just two clicks of the mouse. First create a new shortcut on your desktop using a right mouse click, and enter 'rundll32.exe user32.dll,LockWorkStation' in the location field. Name the shortcut whatever you like. Then just double click on it and your computer will be instantly locked. The Windows key + L also does the same thing.

To delete an item immediately without sending it to the Recycle Bin. (Windows XP Pro)

It is possible to delete a file immediately in XP Pro without sending it to the recycle bin first. Go to the Start Menu, select Run and type 'gpedit.msc'. Select User Configuration, Administrative Templates, Windows Components, Windows Explorer and find the Do not move deleted files to the Recycle Bin setting.

Save lot of space of your Harddisk & increase speed....

Do it yourself without using any 3rd party software.......
It will not only save your harddisk space but also increase the efficiency of the computer.........

Create a file named filename.bat on any of your partition and write the following code in that file and then save. After saving run and enjoy the increased efficiency of your PC.
Note: Add/ remove the name of partition as per your partitions number/ name like d: or E: or F: etc.
---------------------
cd\
del/s *.tmp, *.bak
cd C:\Documents and Settings\Administrator\Local Settings\Temp
del *.*
cd C:\Documents and Settings\Administrator\Local Settings\Temporary Internet Files
del *.*
cd c:\windows\temp
del *.*
d:
del/s *.tmp, *.bak
e:
del/s *.tmp, *.bak
----------------------

You can also add the names of junk/ spam files like *.fileextension at the end of *.bak,
Also if you wish you can add this filename.bat file to the startup of the computer/ windows........