Diskimagemounter Utility

I'm running a 2011 MacBookPro with Sierra (10.12.2) on it. My backups to my Time Capsule are working, and backing up, however, I can't open the sparsebundle files on the the Time Machine, I keep getting the message 'The application DiskImageMounter.app can't be opened -36' My son's MacBookPro. The problem is when I select the MPEG and hit Get Info or Open With and I go to that spot the DiskImageMounter.app is faded out so I can't select that as an option. It only lets me pick DivX Converter.app, DivX Player.app, Microsoft Excel, Path Finder.app or Stuffit Expander or Other. In the Disk Utility app on your Mac, choose File New Image Blank Image. Enter a filename for the disk image, add tags if necessary, then choose where to save it. This is the name that appears in the Finder, where you save the disk image file before opening it.

By default the application to open ‘.dmg’ files should be ‘DiskImageMounter’ [not ‘Disk Image Mounter’], not ‘Disk Utility’. To return ‘DiskImageMounter’ as the default application to automatically process a ‘.dmg’ file:

1- Right click on any ‘dmg’ file -> Get Info’ menu item. A ‘Get Info’ window will appear.

02. From the ‘Open with:’ popup menu (you may have to click on the disclosure triangle to see it) select ‘DiskImageMounter’.
[Or, you may have to click the popup menu’s ‘Other…’ menu item and navigate to the ‘/System/Library/CoreServices/’ folder to select ‘DiskImageMounter’.]

03. Click on the ‘Change All…’ button. An alert box will appear.

Disk Image Mounter App Mac Os

04. Click on the ‘Continue’ button.

05. Close the ‘Get Info’ window.

06. Double click on any ‘.dmg’ file to test whether MacOS X actually accepted the changes you just made.