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Old 08-15-2022, 03:07 PM   #16
TornSoul
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99% sure I was on 6.x.x a month ago
(I have 6.1 in my dl folder from July 16th)

I'd really like to avoid installing the media pack (for reasons) - I very deliberately picked the N version.

And I guess Calibre ought to work on any windows version? (In an ideal world anyhow)
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Old 08-15-2022, 03:16 PM   #17
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Guess I was wrong about being on 6.x.x

Just (uninstalled Calibre and then) installed Calibre 5.6.0 (what I happened to have in my recycle bin)

I can now read epub again!!!

So... No upgrade for me I guess - Until this is somehow solved....
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Old 08-15-2022, 03:22 PM   #18
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Just tried with version 6.1.0 - Epub not working. So seems to be a version 6 issue (combined with a Win N version)
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Old 08-15-2022, 03:43 PM   #19
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Quote:
Originally Posted by TornSoul View Post
Just tried with version 6.1.0 - Epub not working. So seems to be a version 6 issue (combined with a Win N version)
6.3.0 is the latest. Kovid has been stomping on Bugs as fast as he finds out
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Old 08-15-2022, 04:14 PM   #20
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If you are using an intel processor then you should try calibre while using the intel graphs.


bernie
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Originally Posted by TornSoul View Post
Just tried with version 6.1.0 - Epub not working. So seems to be a version 6 issue (combined with a Win N version)
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Old 08-15-2022, 05:23 PM   #21
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I'm beginning to think the issue is the lack of media support in the N version coupled with the built in TTS support in the calibre 6 viewer.

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Old 08-17-2022, 07:59 PM   #22
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Well I'm enroute to testing this. Have setup 3 virtual machines; all are Windows 10 Pro N.

One is being left as base with no updates. The other two will have all applicable updates applied, and then one of the updated copies will have the Media Pack installed.

Calibre Portable 6.3 is on all three and so far the viewer error is present.

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Old 08-17-2022, 09:37 PM   #23
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Can you run dependency walker on the dll and see what it reports
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Old 08-17-2022, 11:09 PM   #24
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Working on it. Should with luck have results tomorrow

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Old 08-18-2022, 01:11 AM   #25
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I'll pick this up tomorrow but ....

My Windows 10 Pro N 20H2 install with Media Pack now runs the viewer.
My Windwos 10 Pro N 20H2 without Media Pack does NOT run the viewer.
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Old 08-18-2022, 09:35 AM   #26
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I made use of Dependencies from https://github.com/lucasg/Dependencies and captured three distinct commands per machine. The
Quote:
-knowndll : dump all the system's known dlls (x86 and x64)
-modules : dump <FILE> resolved modules
-chain : dump <FILE> whole dependency chain
Attached find the log files from each machine

Hope this helps
Attached Files
File Type: zip NoMediaPack.zip (94.1 KB, 110 views)
File Type: zip MediaPack.zip (97.6 KB, 88 views)
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Old 08-18-2022, 01:27 PM   #27
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After looking at the log files check and make sure that C:\WINDOWS\system32\KERNELBASE.dll and **C:\WINDOWS\SysWOW64\kernelbase.dll is the same version for both systems.

Just for testing replace the nomedia system kernelbase with the one from the mediapack system.


also just from a quick look the mediapack is making a lot more .dll calls.

bernie

**added edit
Quote:
Originally Posted by PeterT View Post
I made use of Dependencies from https://github.com/lucasg/Dependencies and captured three distinct commands per machine. The


Attached find the log files from each machine

Hope this helps
Last edited by gbm; 08-18-2022 at 01:32 PM.
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Old 08-18-2022, 02:05 PM   #28
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The first missing dll is MFTranscode.dll from c:\windows\system32

I suppose I can check for this file and if its absent display a more useful error message when the viewer fails. It's really annoying that windows LoadLibrary does nto tell you which dll failed to load. Or maybe I can try to detect windows N version without media pack, though given the absolute mess that is windows versioning, i doubt there is a robust way to do that either.
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Old 08-18-2022, 02:10 PM   #29
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Quote:
Originally Posted by gbm View Post
After looking at the log files check and make sure that C:\WINDOWS\system32\KERNELBASE.dll and **C:\WINDOWS\SysWOW64\kernelbase.dll is the same version for both systems.

Just for testing replace the nomedia system kernelbase with the one from the mediapack system.


also just from a quick look the mediapack is making a lot more .dll calls.

bernie

**added edit
No. The issue is more that Windows N without Media Pack is missing requirements that calibre needs. Either this needs to be documented or a workaround found within calibre / QT6.

Some people have a legitimate reason for wanting Windows N and calibre.

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Old 08-18-2022, 02:33 PM   #30
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https://github.com/kovidgoyal/calibr...4e2191ffa8d3ec
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