IF and IF NOT commands in batch file

There are three variations of the IF and IF NOT commands.

• IF EXIST: Execute the commandline only if a particular file exists:

  IF EXIST some.txt COPY c:/some.dll %windir%/SYSTEM/some.dll

• Compare two text strings, and execute the commandline only if they are identical.

  IF %HostWinBootDrv%==C SET WinDir=C:\WINDOWS

• Error testing: Check the exit code of the most recently run program. If it is equal to or greater than the number specified, execute the command:

  IF ERRORLEVEL 4 ERASE trashfile.tmp /P

The better way to understand this command is try it yourself.
If got any question, post it here. I will try my best to solve it.

Turn ON/OFF your Remote Desktop

Here is the batch :

@ECHO OFF
:Prompt
::Prompting technician for machine name/IP which to connect
SET /P TargetMachine=Please enter the machine name or IP address:
CLS
ECHO Remote Desktop Check on \\%TargetMachine%
:Menu
ECHO.
ECHO 1. Remote Desktop Check (Enabled 0x0 or disabled 0x1)
ECHO 2. Remote Desktop On (0x0)
ECHO 3. Remote Desktop Off (0x1)

set choice=
set /p choice=Please type in your choice and press enter.
if not '%choice%'==' set choice=%choice:~0,1%
if '%choice%'=='1' goto RemoteDesktopCheck
if '%choice%'=='2' goto RemoteDesktopOn
if '%choice%'=='3' goto RemoteDesktopOff
ECHO "%choice%" is not valid please try again
ECHO.
goto Menu

::Listing 3: CheckRD.cmd
:RemoteDesktopCheck
@reg query "\\%TargetMachine%\HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections
GOTO Prompt

::Listing 4: RDOn.cmd
:RemoteDesktopOn
@reg add "\\%TargetMachine%\HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections /t REG_DWORD /d 0 /f
GOTO Prompt

::Listing 5: RDOff.cmd
:RemoteDesktopOff
@reg add "\\%TargetMachine%\HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections /t REG_DWORD /d 1 /f
GOTO Prompt

Copy and save it the name as you like.

This batch file can use to check for your remote desktop status either on or off. On the other hand, you can also use it to turn on or off of your remote desktop.

For more details of Remote Desktop : Please visit here .