Article ID: 118504, created on Nov 7, 2013, last review on May 10, 2014

  • Applies to:
  • Operations Automation


Installation of POA packages on Windows host fails with the following error message:

Command 'name' execution failed with code 1618

where 'name' is a particular command which failed.

Such tasks may be created after manual installation of a package on a Windows host or during POA update installation.


The error code 1618 is a common error code of the MS Installer:

Another installation is already in progress. Complete that installation before proceeding with this install.


The error message means that another instance of the MS Installer is already running and new one cannot be run.


  1. Log into the Windows server in question via RDP

  2. Open Task Manager > Processes and click 'Show processes from all users'

  3. Find the msiexec.exe process and remember the user which executed it

  4. Log into the host under the found user. Check progress of the running installation process, wait while it is completed.

  5. If it is not possible to wait until the already running installation process completes (it is not possible to log in under the user, installation hung, failed, etc), then right-click on the msiexec.exe process in the Windows Task Manager and select 'End Process'

  6. Run the failed task in the POA Task Manager

Search Words


Another installation is already in progress

install packages

execution failed with code 1618


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