@ECHO OFF
:: Enable command extensions and save initial environment
VERIFY OTHER 2>NUL
SETLOCAL ENABLEEXTENSIONS
IF ERRORLEVEL 1 (
	ECHO Unable to enable command extensions
	GOTO End
)

:: Check parameters
SET PC=%ComputerName%
ECHO.%1 | FIND "\\" >NUL
IF NOT ERRORLEVEL 1 (
	FOR /F "tokens=* delims=\" %%A IN ('ECHO.%~1') DO SET PC=%%A
	SHIFT
)
IF /I [%1]==[]   SET SWITCH=/V
IF /I [%1]==[/Q] SET SWITCH=/S
IF /I [%1]==[/S] SET SWITCH=/S
IF /I [%1]==[/V] SET SWITCH=/V
IF [%SWITCH%]==[] GOTO Syntax

:: Check Windows version
VER | FIND "Windows NT" >NUL
IF NOT ERRORLEVEL 1 GOTO NT4
VER | FIND "Windows 2000" >NUL
IF NOT ERRORLEVEL 1 GOTO W2K
GOTO Syntax

:NT4
:: Check if remote computer was specified by accident
IF DEFINED PC GOTO Syntax
:: Use WINMSD.EXE to check the amount of RAM installed
START /W WINMSD.EXE /S
:: Read the amount of RAM installed from WINMSD's report
FOR /F "tokens=2 delims=: " %%A IN ('TYPE %COMPUTERNAME%.TXT ^| FIND "Total:" ^| FIND /V "\"') DO SET RAM=%%A
:: Delete WINMSD's report
DEL %COMPUTERNAME%.TXT
:: Add 1023 to round up, or
:: add 512 for "mathematical" rounding, or
:: add 0 (or "rem out" next line) to round down
SET /A RAM = %RAM:,=% + 1023
SET /A RAM = %RAM:,=% / 1024
:: Use switch to determine display format
IF [%SWITCH%]==[/S] (
	ECHO %RAM%
) ELSE (
	ECHO.
	ECHO Total amount of RAM installed: %RAM% MB
)
GOTO End

:W2K
:: Delete old temporary file if it exists
IF EXIST "%Temp%.\%PC%.txt" DEL "%Temp%.\%PC%.txt"
:: Use WINMSD.EXE and MSINFO32.EXE to check the amount of RAM installed
START /W WINMSD.EXE /computer %PC% /categories +SystemSummary /report "%Temp%.\%PC%.txt"
:: Wait for the temporary report file to be generated -- though START /W did
:: wait for WINMSD.EXE to complete, WINMSD.EXE only started MSINFO32.EXE and
:: then terminated without waiting for MSINFO32.EXE to finish
:Wait
IF NOT EXIST "%Temp%.\%PC%.txt" (
	PING 1.1.1.1 -n 1 -w 5000 >NUL
	GOTO :Wait
)
:: Parse the relevant data from the temporary report file
:: Delims is a TAB followed by a SPACE
FOR /F "tokens=4,5 delims=	 " %%A IN ('TYPE "%Temp%.\%PC%.txt" ^| FIND /I "Total Physical memory"') DO (
	SET RAM=%%A
	SET Multiplier=%%B
)
:: Wait and retry if the file existed but was still being written
IF NOT DEFINED RAM GOTO :Wait
:: Parse the result and convert to MB
SET RAM=%RAM:,=%
SET RAM=%RAM:.=%
SET Div=1048576
SET Mup=1
SET Rnd=1048575
IF "%Multiplier%"=="KB" (
	SET Div=1024
	SET Rnd=1023
)
IF "%Multiplier%"=="MB" (
	SET Mup=1
	SET Div=1
	SET Rnd=
)
IF "%Multiplier%"=="GB" (
	SET Mup=1024
	SET Div=1
	SET Rnd=
)
SET /A RAM = %RAM% + %Rnd%
SET /A RAM = %RAM% * %Mup% / %Div%
:: Use switch to determine display format
IF [%SWITCH%]==[/S] (
	ECHO %RAM%
) ELSE (
	ECHO.
	ECHO Total amount of RAM installed on \\%PC%: %RAM% MB
)
GOTO End

:Syntax
ECHO.
ECHO GetRAM.bat, Version 2.00 for Windows NT 4 / 2000
ECHO Displays the amount of RAM in MB installed on this PC ^(or a remote PC, in
ECHO Windows 2000 only!^)
ECHO.
ECHO Idea: Mike Castle
ECHO Posted on alt.msdos.batch.nt, April 26, 2001
ECHO Extended by Rob van der Woude
ECHO http://www.robvanderwoude.com
ECHO.
ECHO Usage:  %~n0  [ \\remote_pc ]  [ /Q ^| /S ^| /V ]
ECHO.
ECHO Switches:  \\remote_pc           remote computer name ^(Windows 2000 only!^)
ECHO            /Q          ^(quiet^)   display the amount of RAM installed on the
ECHO                                  computer as a number only
ECHO            /S          ^(silent^)  same as /Q
ECHO            /V          ^(verbose^) also tells what it is displaying ^(default^)
ECHO.
ECHO This batch file uses NT's native WINMSD.EXE to check the amount of RAM
ECHO installed.
ECHO If you find it too slow and you have a copy of the Windows NT 4 Resource
ECHO Kit you can use MEMORY.BAT instead.
ECHO MEMORY.BAT uses PSTAT.EXE to check the amount of RAM installed, which is a
ECHO lot faster.
ECHO MEMORY.BAT is available at http://www.robvanderwoude.com too.

:End
ENDLOCAL & SET RAM=%RAM%