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Agent installation fails and rolls back


Article ID: 161308


Updated On:


Data Center Security Server


The installation process on windows XP/ 2003 fails and rolls back without any error messages displayed on the screen

Error Message within the "SISAgentSetup.log" file:

ISSCRIPT_VERSION_MISSING = The InstallScript engine is missing from this machine.  If available, please run ISScript.msi, or contact your support personnel for further assistance. 



The required installshield package is not available on the host machine


There are two options to resolve the issue:

  • Are you using the "MSI" installer package?  If yes, please attempt an install with the .EXE file as it seems the Win XP/2003 machine is missing or has a damaged Install Shield package. The EXE file contains a copy of the required package.
  • If you are using the .EXE file, then please upgrade the install shield package on the Win XP/2003 machine to v4.5 and re-attempt the install. The details of the new package are available at this URL:



Applies To

SCSP 5.2.9 or DCSSA 6.0

Windows XP/ 2003