Visual Studio 2017 is offered in different editions, Professional, Enterprise or Community Edition, that can all co-exist on the same machine. When you install Enterprise Developer, its setup file installs it into any edition of Visual Studio 2017 installed on the machine.
If, after Enterprise Developer is installed, you install a different edition of Visual Studio 2017, you can use the MFVSIXINSTALL utility (available in the Enterprise Developer installation directory) to plug Enterprise Developer into that edition.
To install Enterprise Developer in all editions of Visual Studio 2017:
This starts the VSIX Installer utility that will install all the required components into the existing editions of Visual Studio 2017.
You can execute MFVSIXInstall.exe from the command line with different parameters. For example, to uninstall Enterprise Developer from all editions of Visual Studio, execute MFVSIXInstall -u.
For a list of all parameters execute MFVSIXInstall -?.