How do I... | Default Programs Editor

Step 1: From the main screen, click on the Options button.
Step 2: On the Options Page, click the Disable 'Search web for unknown extension' Dialog Box button.
Step 3: If a UAC Prompt appears, click Allow.
Done The "Windows cannot open this file" dialog box has been disabled. When a file with an unknown extension is launched, the "Open With..." dialog will appear automatically.

Step 1: From the main screen, click the File Type Settings button
Step 2: On the File Type Page, click the Context Menu button
Step 3: Choose an extension to edit, and click the Next button
Step 4: Choose a context menu item to edit from the list, and click the Edit Selected Command button
Step 5: In the "Command name" area, type the new context menu item name. Then click the Next button to return to the Context Menu Page
Step 6 Click the Save Context Menu Button
Done The context menu item has been renamed.

Step 1: From the main screen, click the File Type Settings button.
Step 2: On the File Type Page, click the Context Menu button.
Step 3: Choose an extension to edit, and click the Next button.
Step 4: Click the Add... button.
Step 5: In the "Command name" area, type the new context menu item name. In the "Program path" area, type the full file path to the program which will be launched when this context menu item is clicked. For example, c:\windows\system32\notepad.exe for Notepad. Specifying "%1" as a paramter will pass the full path of the selected file to the chosen program. Therefore, to open the selected file with notepad, the full "Program path" value would be c:\windows\system32\notepad.exe "%1" Choose whether the new context menu item will be for all files of the chosen file type, or only for files with the selected extension. Then click the Next button to return to the Context Menu Page.
Step 6 Click the Save Context Menu Button.
Done The new context menu item has been added.

Step 1: From the main screen, click the "Autoplay Settings" button.
Step 2: On the Autoplay Media Selection Page, choose which Media Type to edit, then click Next.
Step 3: On the Media Options Page, click the "Add..." button.
Step 4: Choose an autoplay handler from the list, and click the "Next" button. If the autoplay handler you want is not on the list, click the "Add a new handler" button.
Step 5: In the "Action name" area, type the new autoplay handler action name. This will typically be something along the lines of "Play", "Open", or "Rip". In the "Program path" area, type the full file path to the program which will be launched when this context menu item is clicked. For example, c:\path\to\mplayerc.exe as an example for Media Player Classic. Specifying "%1" as a paramter will pass the full path of the selected file to the chosen program. Therefore, to play the inserted media with Media Player Classic, the full "Program path" value would be c:\path\to\mplayerc.exe "%1" The icon and name of the program can typically be detected based on the program path, but you may override the inferred values by unchecking the appropriate checkboxes and providing customized values. Finally, click the Next button to return to the Media Options Page.
Step 6: Click the "Save Autoplay Settings" Button.
Done The new autoplay handler program has been added to the list of options for the selected media type.