Patch 273 provides MIC System I v4.0.6 drivers for the Pioneer 2400, 2600, 2800 and 5000 series of laser disk players. 
To install these drivers:
Copy the files mic-pi42.sys, m30valid.dat and player.hlp to the Micfiles directory on your hard disk, where they will replace older versions of those files. 


Run micsetup.exe and select Player Type. 


For the Pioneer 2400, 2600 or 2800 player series, select Pioneer 2000 / 4000. 
For the Pioneer 5000 player series, select Pioneer 5000 / 8000. 


Save the changes and exit micsetup