Can't set Calibre as default for epub

[sespr]

Windows 7 SP1 64. Calibre 0.9.34 64 bit.

At some point in updating Calibre I lost the ability to set Calibre as the default app to open epub format books.

When I attempt to open an epub the only program shown is Adobe. When I browse and select Calibre and click ok nothing happens. So, the only way to get these books into calibre is to drag and drop.

Any ideas on how to fix this?

[theducks]

Originally Posted by sespr

Windows 7 SP1 64. Calibre 0.9.34 64 bit.

At some point in updating Calibre I lost the ability to set Calibre as the default app to open epub format books.

When I attempt to open an epub the only program shown is Adobe. When I browse and select Calibre and click ok nothing happens. So, the only way to get these books into calibre is to drag and drop.

Any ideas on how to fix this?

Control Panel: Default Programs: Associate a Filetype: EPUB (if it is not already on the 'other Programs list) Use Browse button to the Add a program : navigate to Program files Calibre2 and choose ebook-viewer.exe

That will add it to the list.

Note, this is to VIEW a book. IMHO you should use a different (better) method to deliberately Add books to the Library.
a) set up an auto-add folder
b) drag and drop (onto the Calibre Icon or Calibre if open)
c) Use the Calabre Add menu item

[PeterT]

If you previously had 32 bit calibre installed and set as the default viewer, there have been various posts and threads on this issue. Try a search in these forums on registry.

For instance see this:

Originally Posted by Matt9876

First, I'd like to echo some of the other people in saying thank you for Calibre - it is one of the best and most useful programs I've ever used, and even better, it's free and open-source!

Like at least one other person who posted, after uninstalling the 32-bit version of Calibre and installing the 64-bit version, I was unable to set ebook-viewer.exe as a default program for any file type. In the selection dialogue, I would select the program and it would not appear on the list. After reading this thread, I searched through my registry and found several remaining entries referring to the old Calibre directory in C:\Program Files (x86)\. After I deleted all of these entries from the registry, I was then able to set the newly installed ebook viewer in the C:\Program Files\Calibre2\ directory as a default program like normal.

I have no idea why it wouldn't let me do that in the first place - perhaps there's some kind of bug in Windows 7 having to do with programs with the same file name in different directories? - but in any case, I was able to get it working.

[sespr]

Originally Posted by PeterT

If you previously had 32 bit calibre installed and set as the default viewer, there have been various posts and threads on this issue. Try a search in these forums on registry.

For instance see this:

Thanks Peter. I ran CCleaner found the old registry items. Deleted them, rebooted and works find now.

[johnnybuck]

I fixed this problem by editing my registry. I was going to use a registry cleaner but decided against it after reading a "HowtoGeek" article advising against them.

- I hit the Windows button and typed in "Run".
- In the "Run" program, I typed "regedit"
- In the Registry Editor, I clicked on "HKEY_CLASSES_ROOT"
- I scrolled down to "Applications" and clicked on it.
- From there, I opened the drop-down menus "ebook-viewer.exe", then "shell", then "open", then "command"
- I then clicked on (Default) under "Name" in the main window.
- I then clicked on the "Edit" menu and then clicked "Modify"
- I edited the path so that it matched the current location of the program (In my case, I changed it from ""C:\Program Files (64)\Calibre2\ebook-viewer.exe" "%1"" to ""C:\Program Files\Calibre2\ebook-viewer.exe" "%1""
- The e-book viewer became available for me to set as a default program.

Hope this helps!

[theducks]

You Necro Posted

Program files (64) ? was never a valid install

Valid is
Program files for 64 bit
Program files(x86) for 32 bit

either, or both can coexist