View e-pubs using external viewer not working

dapjukebox · 01-24-2010, 03:12 PM

Hi all,
I am having a problem viewing e-pub's from calibre using ADE as the reader.
The preferences are set to use external viewer but ADE never starts.
I can open e-pubs from windows explorer ok.
When selecting view the cursor changes briefly then returns to normal but ADE does not start. I have tried this on both my laptop and desktop PC.
They are both running Windows 7, the laptop is 32 bit and the desktop is 64 bit.
Not sure if this is relevant but the database is stored on a server running Windows Home Server.
I am beginning to think this is a Windows 7 permissions thing as it worked perfectly on Windows XP. I did try running Calibre as administrator but that made no difference.

Thanks for looking.

kovidgoyal · 01-24-2010, 07:24 PM

Is ADE associated with EPUB?

dapjukebox · 01-25-2010, 12:59 PM

Hi, thanks for the reply,
Yes, clicking on an epub in explorer opens with ADE just fine.
It does seem very odd!!

kovidgoyal · 01-25-2010, 02:30 PM

Strange, I'm not too familiar with 7, but on xp/vista i'd advise you to use something like registry cleanr to clean up your registry and then re-associate epub with ADE

dapjukebox · 01-25-2010, 04:36 PM

Further investigation has reveaed the problem but not the answer.
I made a copy of the database folder on the laptop and changed the location in Calibre to point to this folder and success - epubs open fine with ADE.
Resetting calibre back to the database folder on the server and back to same problem - epubs will not open with ADE.
Incidently they will open with the internal viewer.

kovidgoyal · 01-26-2010, 03:44 AM

Most likely ADE has trouble opening the files on a network share, though I don't really see why that should be.

dapjukebox · 01-26-2010, 01:23 PM

That was my first thought but ADE will open epubs from exporer if i navigate to the database folder on the server.
What does pushing the view button on calibre do?
Does it just launch ADE with the path to the book in the database folder or does it copy the book to a temp location first?

kovidgoyal · 01-26-2010, 02:53 PM

Just uses the existing path

dapjukebox · 01-27-2010, 03:34 AM

This is really puzzling.
I dug out an old laptop which still has Windows XP on it. Installed ADE and Calibre. Pointed Calibre at the existing database on the server and got the same result - ADE doesn't open. I am sure it used to work but that would have been an older version.
I then analyzed what was going on with ProcessMonitor.
There are some very strange things going on when the database is on the server. It appears that Calibre is getting the path to the e-pub wrong then gives up trying to launch ADE when it can't find the file.
I have attached 2 logs, 1 for a network database and 1 for a local database.

kovidgoyal · 01-27-2010, 11:09 AM

Try mounting your network share as a disk drive and use that as the path to the calibre library in preferences

dapjukebox · 01-27-2010, 01:22 PM

That works ok.
Does that mean that Calibre can't cope with UNC paths?

kovidgoyal · 01-27-2010, 01:25 PM

In this particular instance, apparently.

01-24-2010, 03:12 PM	#1
dapjukebox Member Posts: 18 Karma: 12 Join Date: Jul 2009 Device: PRS-505	View e-pubs using external viewer not working Hi all, I am having a problem viewing e-pub's from calibre using ADE as the reader. The preferences are set to use external viewer but ADE never starts. I can open e-pubs from windows explorer ok. When selecting view the cursor changes briefly then returns to normal but ADE does not start. I have tried this on both my laptop and desktop PC. They are both running Windows 7, the laptop is 32 bit and the desktop is 64 bit. Not sure if this is relevant but the database is stored on a server running Windows Home Server. I am beginning to think this is a Windows 7 permissions thing as it worked perfectly on Windows XP. I did try running Calibre as administrator but that made no difference. Thanks for looking.

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01-24-2010, 07:24 PM	#2
kovidgoyal creator of calibre Posts: 43,842 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Is ADE associated with EPUB?

01-25-2010, 12:59 PM	#3
dapjukebox Member Posts: 18 Karma: 12 Join Date: Jul 2009 Device: PRS-505	Hi, thanks for the reply, Yes, clicking on an epub in explorer opens with ADE just fine. It does seem very odd!!

01-25-2010, 02:30 PM	#4
kovidgoyal creator of calibre Posts: 43,842 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Strange, I'm not too familiar with 7, but on xp/vista i'd advise you to use something like registry cleanr to clean up your registry and then re-associate epub with ADE

01-25-2010, 04:36 PM	#5
dapjukebox Member Posts: 18 Karma: 12 Join Date: Jul 2009 Device: PRS-505	Further investigation has reveaed the problem but not the answer. I made a copy of the database folder on the laptop and changed the location in Calibre to point to this folder and success - epubs open fine with ADE. Resetting calibre back to the database folder on the server and back to same problem - epubs will not open with ADE. Incidently they will open with the internal viewer.

01-26-2010, 03:44 AM	#6
kovidgoyal creator of calibre Posts: 43,842 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Most likely ADE has trouble opening the files on a network share, though I don't really see why that should be.

01-26-2010, 01:23 PM	#7
dapjukebox Member Posts: 18 Karma: 12 Join Date: Jul 2009 Device: PRS-505	That was my first thought but ADE will open epubs from exporer if i navigate to the database folder on the server. What does pushing the view button on calibre do? Does it just launch ADE with the path to the book in the database folder or does it copy the book to a temp location first?

01-26-2010, 02:53 PM	#8
kovidgoyal creator of calibre Posts: 43,842 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Just uses the existing path

01-27-2010, 11:09 AM	#10
kovidgoyal creator of calibre Posts: 43,842 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Try mounting your network share as a disk drive and use that as the path to the calibre library in preferences

01-27-2010, 01:22 PM	#11
dapjukebox Member Posts: 18 Karma: 12 Join Date: Jul 2009 Device: PRS-505	That works ok. Does that mean that Calibre can't cope with UNC paths?

01-27-2010, 01:25 PM	#12
kovidgoyal creator of calibre Posts: 43,842 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	In this particular instance, apparently.

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