Blocking Application in Windows XP

Blocking application to restrict it to execution by user. This is an useful trick to System Administrator or who have a PC that they want to protect the important windows program running by user such as regedit.exe, cmd.exe, etc. Other benefit, with this tricks you can block windows application from running without windows application blocker software. To do this tips is easy you can change some registry setting on your Windows XP.

This tips I tested on my Windows XP and work fine on my computer.

Here how to Block Specific Program on WIndows XP from running by user:

Open your registry editor (Click Start-Run then type regedit), then find the following key:

HKEY_CURRENT_USER / Software / Microsoft / Windows / CurrentVersion / Policies / Explorer

If you have found the key, add new DWORD Value and rename it to be DisallowRun.
Double click the value and set data value to be 1.
Create new key under Explorer key and rename it tobe DisallowRun, so the complete key will be like this:

HKEY_CURRENT_USER / Software / Microsoft / Windows / CurrentVersion / Policies / Explorer / DisallowRun

On DisallowRun key, create new String Value, and rename it to be (example: application1). Double click the value and set the data value by application that you want to block. (Example winamp.exe, cmd.exe, or regedit.exe)
Close your registry editor.
Logout or restart PC to take the effect.