This is are the steps that I followed:

 

- User presented error: The remote server returned an error: (500) Internal Server Error.

- On the  Application Server, Open IIS

              Navigate to the list of Application Pools

              Verify the following application pools' Advanced Settings for Enable 32-bit are set as follows:

              DefaultAppPool = False

              Eclipse3Server = False

              EclipseWebUI = True

- Problem persisted

- Select ApplicationPool>Advance Settings

- Select ApplicationPoolIdentity>Select Custom Account

- Provide Admin level access to the 3 applications (Default,Eclipse3Server,EclipseWebUI)

- Problem persisted

- Proceed to run the Eclipse Server Configuration and skip the licensing process

- Installation finished

- Re-run the Eclipse Server Configuration

- Error Displayed [The remote name cannot be resolved: 'localhost']

- Proceed to open Windows host file (C:Windows\system32\drivers\etc\hosts) in notepad

- Add line '127.0.01 localhost/docstar'

- Re-run Eclipse Server Configuration

- Field "type the correct domain and retry" intput: 127.0.0.1 in said field

- Problem solved