XnViewMP - integration - file association

[user0]

General - Integration

How to Set File Associations in Windows 10/11

1. Register app in the system

• Installer version
  app will automatically register itself in registry during installation process

• Portable version
  you have to manually register app in the system
  • run XnViewMP
  • press 'Set file associations...' (in Settings > Integration)
    to create ProgID keys in registry (HKCR hive)

    Code: Select all

    XnViewMP.arw
    XnViewMP.avif
    XnViewMP.bmp
    XnViewMP.cr2
    XnViewMP.cr3
    XnViewMP.crw
    XnViewMP.cur
    XnViewMP.dds
    XnViewMP.dng
    XnViewMP.emf
    XnViewMP.exr
    XnViewMP.gif
    XnViewMP.hdr
    XnViewMP.heic
    XnViewMP.heif
    XnViewMP.ico
    XnViewMP.iff
    XnViewMP.jfif
    XnViewMP.jif
    XnViewMP.jp2
    XnViewMP.jpc
    XnViewMP.jpe
    XnViewMP.jpeg
    XnViewMP.jpg
    XnViewMP.jxl
    XnViewMP.jxr
    XnViewMP.nef
    XnViewMP.pbm
    XnViewMP.pcd
    XnViewMP.pcx
    XnViewMP.pef
    XnViewMP.pgm
    XnViewMP.pic
    XnViewMP.png
    XnViewMP.ppm
    XnViewMP.psd
    XnViewMP.raf
    XnViewMP.ras
    XnViewMP.rle
    XnViewMP.rw2
    XnViewMP.sld
    XnViewMP.srf
    XnViewMP.tga
    XnViewMP.tif
    XnViewMP.tiff
    XnViewMP.webp
    XnViewMP.wmf
    XnViewMP.xbm
    XnViewMP.xpm
    

  • (OPTIONAL) additional ProgID keys can be added manually
    if you associate a filetype with application and there is no corresponding ProgID in the registry,
    the application icon and default filetype description will be used.
    
    If you want to use custom icon/filetype description you can add new ProgID, eg ABC filetype
    update paths to match your case

    Code: Select all

    Windows Registry Editor Version 5.00
    
    [HKEY_CLASSES_ROOT\XnViewMP.abc]
    @="ABC Bitmap file"
    
    [HKEY_CLASSES_ROOT\XnViewMP.abc\DefaultIcon]
    @="D:\\PROG\\portable\\graphic\\XnViewMP\\FileIcons\\generic.ico"
    
    [HKEY_CLASSES_ROOT\XnViewMP.abc\shell\open\command]
    @="\"D:\\PROG\\portable\\graphic\\XnViewMP\\xnviewmp.exe\" \"%1\""
    

    HKCR_XnViewMP.abc_reg.zip

2. Set File Associations
      use any method to set associations:

• Windows
  manually assign each image extension, one by one
  • Settings > Default apps
  • Context menu > Open with

• 3rd party app
  Windows 11 introduced much stricter enforcement of default app associations compared to Windows 10 and some methods may no longer work.
  
  • Types
  • SetUserFTA 1.8.3/4 (free Personal edition)
    allows to set associations in batch

    Code: Select all

    SetUserFTA.exe xnAssociations.txt

    Code: Select all

    .arw, XnViewMP.arw
    .avif, XnViewMP.avif
    .bmp, XnViewMP.bmp
    .cr2, XnViewMP.cr2
    .cr3, XnViewMP.cr3
    .crw, XnViewMP.crw
    .cur, XnViewMP.cur
    .dds, XnViewMP.dds
    .dng, XnViewMP.dng
    .emf, XnViewMP.emf
    .exr, XnViewMP.exr
    .gif, XnViewMP.gif
    .hdr, XnViewMP.hdr
    .heic, XnViewMP.heic
    .heif, XnViewMP.heif
    .ico, XnViewMP.ico
    .iff, XnViewMP.iff 
    .jfif, XnViewMP.jfif
    .jif, XnViewMP.jif
    .jp2, XnViewMP.jp2
    .jpc, XnViewMP.jpc
    .jpe, XnViewMP.jpe
    .jpeg, XnViewMP.jpeg
    .jpg, XnViewMP.jpg
    .jxl, XnViewMP.jxl
    .jxr, XnViewMP.jxr
    .nef, XnViewMP.nef
    .pbm, XnViewMP.pbm
    .pcd, XnViewMP.pcd
    .pcx, XnViewMP.pcx
    .pef, XnViewMP.pef
    .pgm, XnViewMP.pgm
    .pic, XnViewMP.pic
    .png, XnViewMP.png
    .ppm, XnViewMP.ppm
    .psd, XnViewMP.psd
    .raf, XnViewMP.raf
    .ras, XnViewMP.ras
    .rle, XnViewMP.rle
    .rw2, XnViewMP.rw2
    .sld, XnViewMP.sld
    .srf, XnViewMP.srf
    .tga, XnViewMP.tga
    .tif, XnViewMP.tif
    .tiff, XnViewMP.tiff
    .webp, XnViewMP.webp
    .wmf, XnViewMP.wmf
    .xbm, XnViewMP.xbm
    .xpm, XnViewMP.xpm
    

    xnAssociations_txt.zip

ref
Guide to Understanding ProgIDs and File Type Associations
Windows Application Registration Guide
How to configure file associations for IT Pros





Related

• general
  XnViewMP - integration - file association (current post)

• suggestions
  - done -
  Settings - integration - improve win file associations (1.8.4)

[xnview]

i don't know why Windows doesn't add correct keys in registry...

[FKCapitalism2]

With portable version of XnViewMP i did not even have key "HKEY_CURRENT_USER\SOFTWARE\Classes\Applications\xnviewmp.exe". Solution "A" fixed my problem described here.