select Teknoparrot as an emulator and then check custom command line parameter and type 3) it is where some don't know what to do : under the 'Emulation' Tab of the game. 3) Add your Taito TYpex game manually to Launchbox.
3) I add Teknoparrot as an emulator, with no specific paramaters. Now for Launchbox, here's what I do: 1)Create a shortcut for each game I want to use, and name it accordingly to the game. In the teknoparrot emulator folder, you'll notice a folder named game profiles, containning a bunch of XML profiles, they will be usefull once you are set with Teknoparrot UI.
Take time to run Teknoparrot UI, and configure some games. Some antivirus flag some files, but thats not unusual for Taito type-X and other arcde system alike. Basically, start by downloading teknoparrot teknoparrot dot com.