MS SQL tab will not show when creating a new connection. downloaded latest jtds-1.3.0-dist - 3rd party extentions. Also tried with jtds-1.2. went into tools > pref> database > 3rd party JDBC but and pointed to that folder where the jtds.jar file resides. Also have sqldeveloper.exe set to run as administrator. Tried with sqldeveloper64-3.1.07.42-no-jre.zip and sqldeveloper64-3.2.20.09.87-no-jre.zip. Any suggestions?
I personally have had more success using Tools > Preferences > Database > Third Party JDBC Drivers > Add Entry.
Just be sure to point to the jtds-1.2.jar file in the Select Path Entry dialog. The dialog will accept a zip file or a folder as the selection, but those will not work for you in terms of activating the SQLServer / Sybase tabs in the New / Select Database Connection dialog.