Solution for the error "the requested look up key was not found in any activation context"

This is a common error in IE 7. Due to this error it also blocks the activation of Windows XP.

I had to do these steps to resolve the error.

1) Uninstall IE 6 through Add/Remove Window Components
2) Delete IE7 folder from C:\Windows (This folder is hidden)
3) Use firefox to install and download IE8
4) Navigate to C:\Program Files\Internet Explorer and create the shortcut key for
iexplore.exe on the dekstop
5) When you double click IE8 shortcut, it will give you the options to open the
internet explorer with and without Add-ons. Choose the option to open the
internet explorer without Add-ons and set it as default.

Hope this works for you guys.

Steps to password protect files and folders in Windows XP

Example: to password protect a folder called "Test"
1) Create the folder "Test"
2) Copy your contents in the "Test" folder
3) Create a batch file as "loc.bat" in the same location where the "Test" folder is
created (not inside the Test folder)
4) Add the following content to "loc.bat" file
ren Test Test.{21EC2020-3AEA-1069-A2DD-08002B30309D}
5) Double click the "loc.bat" file and the "Test" folder is hidden and password
protected
6) To view and access the "Test" folder and its contents, you have to create
another batch file as "key.bat"
7) Create a batch file as "key.bat" in the same location where the "Test" folder and
the "loc.bat" file (not inside the Test folder)
8) Add the following line to the "Key.bat" file
ren test.{21EC2020-3AEA-1069-A2DD-08002B30309D} test
9) Double click the "Key.bat" file and then you will be able to view and access the
"Test" folder
10) You can copy "loc.bat" and "key.bat" to some other location once the "loc.bat"
is used.

Change the user name in Comment box in Excel

1. Choose Tools|Options
2. Select the General tab
3. Delete the existing User Name, and type a new entry
4. Click OK