Sounds like you're trying to execute a batch file using WiseScript

There is an article in the Altiris Knowledgebase on how to do this.  Go to https://kb.altiris.com
and in the search field enter '2800' or 'Executing a DOS Program in WiseScript'

That should help.

I believe you had tried to run the batch script from a share/server location to find the windows error that you have mentioned.

Recode your batch script as below to check out the functionality:

cls C: CD C:\Program Files\\SQL Express
start /wait Setup.exe /qn INSTANCENAME=HELLO ADDLOCAL=SQL_Engine SAPWD="Antarctica" SECURITYMODE=SQL DisableNetworkProtocols = 0 REBOOT=ReallySuppress /L*v "C:\Program Files\\SQL Express\SQL_Install_Log.txt"
echo %ERRORLEVEL% > C:\Program Files\SQL Express\TEMP.TXT 

The above should not pop up any error for your batch script run. This could have been a potential problem when you had tried to execute it through wrapper too.

Hope this helps!!

I assume you are creating the batch file using the "Insert Line into Text File" command.

Once you have written the batch file, you need to call it using %SYS32%\CMD.EXE /C  <full path to batch file> - you cannot execute the batch file directly, and this may be the cause of your error.

Also, check the syntax of the batch file you have quoted above. At one point you have a double backslash \\ in the middle of a path, and your
echo %Errorlevel% command has a path where you have forgotten double quotes and there is a space in the path, so another potential point of failure. You must always put double quotes around paths with spaces in them, or around paths where a variable is used which may resolve to a path with a space in it.
Simple errors like this will cause you lots of needless hassle.

Suspected first that \\ would kill the script, but fortunately or unfortunately it works with an example i tried out.