The EA Installer is used to place the EA on your desktop such that MT4 can use it. If you are using multiple MT4's you will be able to select the correct one as part of this process.
This is a step by step guide to the installation screens.
1. Click 'Next' on the Welcome screen
2. Accept licence agreement and click 'Next'
3. Select a MetaTrader installation to which you want to add the EA and click 'Next'
4. Review installation information and click 'Next'
5. Click 'Next' once installation progress is complete
6. Select MetaTrader application to run and click 'Finish'
