Hi james Hyndman ,

I hope you're doing well. I wanted to follow up on your installation issue from October 2nd regarding the "error 1719. windows installer service could not be activated". Were you able to find a resolution?

If you're still encountering issues, here are some suggested steps from the support ticket discussion between our team and you on October 6th:

Method 1: Start the Windows Installer Service

1. Click Start, type Services.msc, and press {ENTER}.
2. Double-click Windows Installer.
3. Set the Startup type of Windows Installer to Manual.
4. Click Start to initiate the service. Make a note of any error messages.
5. Click OK.

Method 2: Unregister and Re-register the Windows Installer

1. Click Start, click Run, type MSIEXEC /UNREGISTER, and click OK.
2. Next, click Start, click Run, type MSIEXEC /REGSERVER, and click OK.
3. Try your Windows Installer-based application once more.

Method 3: Conduct an SFC Scan

1. Click Start, navigate to All Programs > Accessories, right-click on Command Prompt, and select Run as administrator.
2. Enter the command: sfc /scannow
3. This will initiate a scan which may take a while. If there are any files that need replacing, you may be prompted to insert your Windows 7 DVD.
4. Once complete, if there were no issues, you'll receive the message: "Windows resource protection did not find any integrity violations".

For more on the SFC scan, you can refer to this guidance.

If these methods don't resolve the issue, it might be a good idea to bring your device to an IT specialist, such as those at London Drugs. They could help with a system scan or possibly suggest a Windows reset.

Do let us know if you need further assistance or if these methods worked for you.

Warm Regards,
Erzsi