Jump to content

Fix for Non-Working Thumbnails of .PDN files (red x icon)


Recommended Posts

For the first time EVAR on any of my computers, I've managed to get the thumbnails for .pdn files to display!

OS:  Win7 x64

Paint.NET v3.5.5 (Final Release build 3.55.3767.28608)

I've always only seen the red x icon for the .pdn files.

Since win7 doesn't have a File Types tab in the folder options anymore, I used a program called:  "FileTypesMan"

I was just trying to get windows to show the PaintDotNet icon from its exe, instead of the ugly red x.

Even if I changed the icon and hit refresh, the red x would appear again.  Made me think it was actually attempting to display a thumbnail, but didn't know how.

So, I changed the File Type to DOCUMENT (was IMAGE).

Poof!  Suddenly, the thumbnail properly appeared!

So, I think you guys have a bug in the thumbnail code...

Edited by casbreuk
Link to comment
Share on other sites

  • 1 month later...

Looks like I finally figured this out. It seems that the DirectX SDK litters some generic thumbnail handler all over the place, and one of the registry keys is uses has a higher precedence than what Paint.NET has been using.

If you go to the following registry key:

HKEY_CLASSES_ROOT \ Paint.NET.1 \ ShellEx \ {BB2E617C-0920-11d1-9A0B-00C04FC2D6C1}

and change the (Default) value to:


(the old value may have been "{8938a035-768d-40c5-9560-bb901087e2af}")

Then this will fix it. I'll see if I can get a fix in place for the v3.5.6 release.

The Paint.NET Blog: https://blog.getpaint.net/

Donations are always appreciated! https://www.getpaint.net/donate.html


Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...