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How to enable long path names?

  • 2 replies
  • 1 has this problem
  • 105 views
  • Last reply by billlee42

billlee42
billlee42
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Thunderbird won't accept attachments with long path names, i.e., longer than 260 char. (If I copy a file from its long path folder to one with a shorter path, TB accepts it as an attachment.)

This page https://winaero.com/blog/how-to-enable-ntfs-long-paths-in-windows-10/ advises adding: 

  <longPathAware>true</longPathAware>

to a Win32 app's "manifest".

Does this work with Thunderbird? If it does, how does one update TB's manifest, please?

Thank you very much! ..Bill..

PS: I have already updated the registry thusly: 

  [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem]
  "LongPathsEnabled"=dword:00000001
Thunderbird won't accept attachments with long path names, i.e., longer than 260 char. (If I copy a file from its long path folder to one with a shorter path, TB accepts it as an attachment.) This page https://winaero.com/blog/how-to-enable-ntfs-long-paths-in-windows-10/ advises adding: <longPathAware>true</longPathAware> to a Win32 app's "manifest". Does this work with Thunderbird? If it does, how does one update TB's manifest, please? Thank you very much! ..Bill.. PS: I have already updated the registry thusly: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem] "LongPathsEnabled"=dword:00000001

Modified by billlee42

Chosen solution

I think the real question is why. If you need a book to describe the file location there is an issue. ALthough using UNC paths now instead of drive letters will make some server addresses longer.

But I doubt Thunderbird will work with a modification that is describes as a windows shell modification.

A manifest file. I think they are only for Visual studio .net projects. Thunderbird is not a .net project. The description here https://docs.microsoft.com/en-us/windows/desktop/sbscs/application-manifests talks about assemblies and they are .net creatures.

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All Replies (2)

Matt
Matt
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  • Top 10 Contributor
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Chosen Solution

I think the real question is why. If you need a book to describe the file location there is an issue. ALthough using UNC paths now instead of drive letters will make some server addresses longer.

But I doubt Thunderbird will work with a modification that is describes as a windows shell modification.

A manifest file. I think they are only for Visual studio .net projects. Thunderbird is not a .net project. The description here https://docs.microsoft.com/en-us/windows/desktop/sbscs/application-manifests talks about assemblies and they are .net creatures.

billlee42
billlee42 Question owner
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Giving files long descriptive names helps my naive users distinguish one from another.

Thank you muchly for the explanations, Matt. These points are not made on the various pages I found regarding longPathAware.