(This txt file is the Thrustmaster TESTCARD.BAT file converted
to be an explanation of GAMEPORT.EXE.)

   To use this program, simply unplug your ThrustMaster Mark II WCS
   and plug your ThrustMaster FCS or PFCS directly into one of the
   15-pin connectors you see on the back of your computer.  Then
   run GAMEPORT.EXE. GAMEPORT.EXE will check 
   to see if it sees the FCS or PFCS at the connector you have 
   plugged it into.  If it does see it there, it will give you a 
   warning that the card you have plugged your FCS or PFCS into is 
   active and should be disabled if it is not the card you intend to
   use.

   YOU MUST DISABLE ALL GAME CARDS ON AN IBM COMPUTER THAT YOU DO 
   NOT INTEND TO USE.  This is a function of the way the IBM  
   computer system was designed.  Many systems come with a Multi 
   I/O Card installed that includes a game card connector that is
   not very stable.  These cards may be active in your system 
   without you knowing it.  You may even be doing fine using the 
   card with a 2-button joystick.  When you plug a multi-button 
   joystick in you may have problems and may immediately assume it 
   is the joystick that is creating the problem when it is due to 
   more than one active game card.  

   The extra game card that is active senses the presence of the 
   first card and ATTEMPTS to disable itself by defaulting to the 
   second joystick port.  A multi-button joystick uses the second 
   joystick port and this causes an immediate conflict between the 
   two game cards as they both attempt to use the second joystick 
   port.  Do not assume you do not have this condition existing in 
   your computer system.  Half of our technical service calls 
   are caused by this problem alone.  Take the time to check it.

   It is an easy one-time test.  Just look at the back of your
   computer and look for any connectors that you can plug a 15-pin
   joystick cable into.  Then, test each one by plugging only your
   FCS or PFCS into that connector.  Then run TESTCARD from the 
   C&CC.  TESTCARD will inform you if that card is active, but you
   MUST have plugged a joystick into it or TESTCARD will not see it.

(For additional troubleshooting help, see TMSA.EXE and TMSA.TXT)