@ECHO OFF
:: Check if a timeout period is specified
IF "%1"=="" GOTO Syntax

:: Filter out slashes, they make the IF command crash
ECHO.%1 | FIND "/" >NUL
IF NOT ERRORLEVEL 1 GOTO Syntax

:: Check for a non-existent IP address
:: Note: this causes a small extra delay!
IF "%NonExist%"=="" SET NonExist=10.255.255.254
PING %NonExist% -n 1 -w 100 | FIND "TTL=" >NUL
IF ERRORLEVEL 1 GOTO Delay
SET NonExist=1.1.1.1
PING %NonExist% -n 1 -w 100 | FIND "TTL=" >NUL
IF NOT ERRORLEVEL 1 GOTO NoNonExist

:Delay
:: Use PING time-outs to create the delay
PING %NonExist% -n 1 -w %1000 >NUL

:: Show online help on errors
IF ERRORLEVEL 1 GOTO Syntax

:: Done
GOTO End

:NoNonExist
ECHO.
ECHO This batch file needs an invalid IP address to function
ECHO correctly.
ECHO Please specify an invalid IP address in an environment
ECHO variable named NonExist and run this batch file again.

:Syntax
ECHO.
ECHO PMSlpW9x.bat
ECHO Poor Man's SLEEP utility,  Version 2.10 for Windows 95 / 98
ECHO Wait for a specified number of seconds.
ECHO.
ECHO Written by Rob van der Woude
ECHO http://www.robvanderwoude.com
ECHO Corrected and improved by Todd Renzema and Greg Hassler
ECHO.
ECHO Usage:    CALL PMSLPW9X nn
ECHO.
ECHO Where:    nn is the number of seconds to wait
ECHO.
ECHO Example:  CALL PMSLPW9X 10
ECHO           will wait for 10 seconds
ECHO.
ECHO Note:     Due to "overhead" the actual delay may
ECHO           prove to be up to a second longer

:End