Hidden command in winxp

Microsoft has hidden many small and big utilities deep down in XP. Most people even don’t know that there is a small setup file creating utility in XP also! Amazed??

Iexpress Wizard = iexpress.exe (Create self-extracting / self-installing package)

System File Checker = sfc.exe (Used for preserving Original system files and warning and restoration of original files on change)

Manually you can use it to detect changed system files as typing following command in StartMenu>>Run

sfc /scannow

(Scan Immediately) - sfc /scannow

(Scan Once At Next Boot) - sfc /scanonce

(Scan On Every Boot) - sfc /scanboot

(Return to Default Setting) - sfc /revert

(Purge File Cache) - sfc /purgecache

(Set Cache Size to size x) - sfc /cachesize=x

It will require Orginal Windows XP CD to restore any missing or changed system files.

Task Kill Utility = taskkill.exe

The following command kills a process by PID:

taskkill -pid

And this command kills a process by name on a remote server:

> taskkill /s -im

Use the /f option to forcefully kill the process.

Task List utility = tasklist.exe

You can use tasklist.exe on Windows XP and Windows Server 2003 to view a list of current running processes (use the /S option to target a remote system):

> tasklist

Another Windows XP and Windows Server 2003 tool that you can use to get a process

list is wmic as shown here (use the /node: option to target a remote system):

> wmic process list brief

IP Configuration

(Display Connection Configuration) ipconfig /all

(Display DNS Cache Contents) ipconfig /displaydns

(Delete DNS Cache Contents) ipconfig /flushdns

(Release All Connections) ipconfig /release

(Renew All Connections) ipconfig /renew

(Refreshes DHCP & Re-Registers DNS) ipconfig /registerdns

(Display DHCP Class ID) ipconfig /showclassid

(Modifies DHCP Class ID) ipconfig /setclassid