Media Player Classic Home Cinema may not be in this list and if it isn't then add it to it as described in the last paragraph, and then click the option to 'Always use the selected program to open this kind of file.' Click OK Now when you double click a file with a. Choose the option to select a program from a list. If your WebM files are already associated with another program and you want to change it to Media Player Classic, then right click on a. Select it, and then click the option to 'Always use the selected program to open this kind of file.' Click OK. Click the Browse button and use the file browser that pops up to navigate to the directory that you have the Media Player Classic Home Cinema executable file in ( mpc-hc.exe for 32-bit Windows, mpc-hc64.exe for 64-bit Windows.) Select the file and click Open and you will see that Media Player Classic Home Cinema will have become an option in the list. Media Player Classic Home Cinema probably will not be in the list by default so you will need to add it to the list. Then choose the option to 'select a program from a list'. If they are currently not associated with any player (no player opens automatically when you double click them), then right-click on a WebM file and click Open. webm files to open with Media Player Classic automatically from now on.

Media player home cinema classic 64 bit