Issue: 

ZWCAD installation failed with the error: "The Windows Installer service could not be accessed". How to solve this issue?

Solution:

Solution 1:

  1. Press the Win+R keys on the keyboard, insert cmd and click OK to open the Command Prompt window.
  2. Enter regsvr32 msi.dll and press Enter until a successful registration prompt appears.
  3. Press the Win+R keys on the keyboard, insert services.msc  and  click OK to open the Services settings.

    Locate the Windows Installer service, double-click to open its properties window, click the Start button under Service status, confirm the operation, then reinstall ZWCAD.

Solution 2:

  1. Press the Win+R keys on the keyboard, insert msiexec /unregister and click OK to remove the registration information.
  2. Press the Win+R keys on the keyboard, insert msiexec /regserver and click OK to re-register the service. Then restart the Windows Installer service.



★★ZWCAD installation failed with the error message "The Windows Installer service could not be accessed".https://confluence.zwcad.com/pages/viewpage.action?pageId=314347616