PROBLEM

When trying to install the Client Component Pack you encounter error 1720.

SYMPTOMS

CAUSE

There are many possible cause for error 1720 to occur.

First, ensure that User Access Control is disabled.  This may require a reboot of the computer.

In order to isolate the issue, you can have the Client Component Pack create a log file that will have additional information on the failure. 

1. Open a Command Prompt as Administrator (right-click the icon for this option)
2. In the command prompt window, type in the following commands (press Enter in between each)
• cd\
• cd CIS_6.0
• cd ga
• cd Client
• msiexec /i "Client Component Pack.msi" /log "log2.txt"
3. Go through the Client Component Pack installation.
4. If it still fails, go to the C:\CIS_6.0\ga\Client\ folder, open the new log2.txt file and go to the bottom.

You will then see the error logged and potentially see the reason it failed.

The most common error looks like the following:

Action start 10:02:21: WriteRegistry.
Error 1720.There is a problem with this Windows Installer package. A script required for this install to complete could not be run. Contact your support personnel or package vendor.  Custom action WriteRegistry script error -2147024891, WshShell.RegWrite: Invalid root in registry key "HKEY_LOCAL_MACHINE\SOFTWARE\prairieFyre Software Inc\CCM\Common\EnterpriseIPAddress". Line 11, Column 1, 
MSI (s) (2C:10) [10:02:31:586]: Product: Mitel Contact Center Solutions Remote Server -- Error 1720.There is a problem with this Windows Installer package. A script required for this install to complete could not be run. Contact your support personnel or package vendor.  Custom action WriteRegistry script error -2147024891, WshShell.RegWrite: Invalid root in registry key "HKEY_LOCAL_MACHINE\SOFTWARE\prairieFyre Software Inc\CCM\Common\EnterpriseIPAddress". Line 11, Column 1, 

A WriteRegistry error can occur due to permissions.  Ensure that you are logged in as an administrator.

If you are a member of the administrator group, but not the actual Administrator account, you may need to add permissions into the registry.
1. Go to Start => Search (or Run) and type regedit then hit Enter.
2. Go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\
3. Right click on Installer and select Permissions.
4. Ensure that the Administrators group has Full Access.
5. Add the user you are logged in as to the list, and give it Full Access.
6. In the same folder, scroll down and right click on Uninstall, then click Permissions.
7. Ensure that the Administrators group has Full Access.
8. Add the user you are logged in as to the list, and give it Full Access.
9. Close Regedit.
10. Restart your computer then try the installation again.

APPLIES TO

CCM 5.x/6.x