Setup to install older version of MT4?

As I write in the title. I have an EA bought a few years back that has suddenly stopped working. Is there a way I can find a setup.exe to install an older version back? The developer is no longer around and I have no way of contacting them.

I have found a site which looks to offer some form of portable version but it is still throwing up errors, and not working properly.

I'm after the setup.exe which installs the version it states, rather than sending it to the latest updated version.

If anyone could help that would be great!

I don't get it with what you are saying about setup.exe is it the EA you are mention on the first line or the metatrader.

But I will assume you are looking for setup.exe of meratrader 4. The only way you can get the installation is from a broker. That means you need to open a new account and install the fresh one. And about the version, I think there's only one version since metatrader already stop update the software and if your EA is coded before I think 2005 (if not mistaken) then there will be no compatibility issue.