Where to download old msi files to uninstall older versions

I'm trying to upgrade to 9.1 PDF today and your installs don't take care of uninstalling 8.1 if the msi for that version isn't available on my machine. The downloads section only has the assemblies.

How do I uninstall 8.1 without the msi?

Forget it. I found it in the New Releases section. I was looking in the Resources section.

Hi Robbe,


Hi thanks for your feedback. It is good to know you have managed to accomplish your requirements.

Please feel free to contact us for any assistance, we will we more than glad to extend our support.

Best Regards,
rmorris-1:
How do I uninstall 8.1 without the msi?
Hi Robbe,

You can also remove previously installed versions of API using Programs and Features option under Control Panel.

Not without the old .msi file. That’s the first thing removing the program from the control panel process prompts you for and won’t perform the uninstall without it.

Hi Robbe,


Thanks for sharing the information. Nevertheless, please continue using our API’s and in the event of any further query, please feel free to contact.