How to remove ActivePython and ActivePerl from a Plesk server?

Question

How to remove ActivePython and ActivePerl components from a Plesk server?

Answer

Warning: removing ActivePython and ActivePerl from the server with Plesk 12.0 will make SpamAssassin and AWStats stop functioning.
To prevent such a situation upgrade Plesk from 12.x to the latest release.

1. Log into Plesk.

2. Disable the Perl support and Python support options for all existed service plans in Service Plans > Service_Plan_Name > Hosting Parameters.

   Warning: this is a mandatory step: otherwise, handlers will not be removed from domains settings.

3. Log into the server via RDP.

4. Go to Start > Control Panel > Programs and Features.

5. Select ActivePerl or ActivePython and click the Uninstall button:

   Click on the screenshot below to expand

   

   ActivePerl or ActivePython are not presented in the Programs and Features list

   1. Check if the package is installed using the following PowerShell command:

      • For ActivePython:
        

        PS Get-WmiObject -Class Win32_Product | Where-Object {$_.Name -match "ActivePython"}

      • For ActivePerl:
        

        PS Get-WmiObject -Class Win32_Product | Where-Object {$_.Name -match "ActivePerl"}

   2. In case the output in the step №1 will not be empty, remove the requried package by executing commands below one by one:

      • For ActivePython:
        

        PS $app = Get-WmiObject -Class Win32_Product | Where-Object {$_.Name -match "ActivePython"}

        PS $app.Uninstall()

      • For ActivePerl:
        

        PS $app = Get-WmiObject -Class Win32_Product | Where-Object {$_.Name -match "ActivePerl"}

        PS $app.Uninstall()

   3. Go to the %plesk_dir%Adittional folder and remove Perl and Python folders if they exist.

   4. Using the command prompt, check that there are no registry keys in the HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\ActiveState:

      C:\> reg query "HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\ActiveState"
      
      HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\ActiveState\ActivePerl
      HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\ActiveState\ActivePython

      In case the output will not be empty, remove the required package by executing the command:

      • For ActivePerl:
        

        C:\> reg delete HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\ActiveState\ActivePerl

      • For ActivePython:
        

        C:\> reg delete HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\ActiveState\ActivePython

6. Back to Plesk and press the Refresh button in Tools & Settings > Server Components.