playercorefactory.xml

<playercorefactory>
 <players>
   <player name="MPC-HC" type="ExternalPlayer" audio="false" video="true">
     <filename>C:\Program Files (x86)\K-Lite Codec Pack\MPC-HC64\mpc-hc64.exe</filename>
     <args>"{1}"</args>
     <hidexbmc>false</hidexbmc>
     <hideconsole>false</hideconsole>
     <warpcursor>none</warpcursor>
   </player>
 </players>
 <rules action="prepend">
   <rule internetstream="true" player="MPC-HC" />
 </rules>
</playercorefactory>