Устаревшее - нельзя вводить пути программ.
Теперь пути программ добавляются только в окне Программы.

Группа указывается для программы в окне редактирования программы.

Отправил письмо админу о 404

походу файловый сервер отключен.

3676: [New] Edit Metadata - more EXIF fields
3681: [Bug] Incorrect Display of Face Tag Regions in EXIF-Rotated Images - https://newsgroup.xnview.com/viewtopic.php?t=49200
3680: [Bug] Navigation follows old sort order after refresh when using 1 tab - https://newsgroup.xnview.com/viewtopic.php?t=49003
3679: [Bug] After 'save as' shows old pic - https://newsgroup.xnview.com/viewtopic.php?t=49194
3678: [Bug] Bad selection with shift key - https://newsgroup.xnview.com/viewtopic.php?t=49156
3677: [Bug] Preview rating - https://newsgroup.xnview.com/viewtopic.php?t=49155
3675: [Bug] Fullscreen - floating Views steals focus without clicking - https://newsgroup.xnview.com/viewtopic.php?t=49120
3674: [Bug] Rename folder not possible - https://newsgroup.xnview.com/viewtopic.php?t=49094
3673: [Bug] Photos removed from album when untaged in browser view - https://newsgroup.xnview.com/viewtopic.php?t=49183
3672: [Bug] Wizard - portable settings - created folder-files - https://newsgroup.xnview.com/viewtopic.php?t=49145
3671: [Bug] xnview.ini updates on restart even when nothing has changed - https://newsgroup.xnview.com/viewtopic.php?t=49147
3670: [Bug] default.keys - Home/End/PgUp/PgDown shortcut in browser
3669: [Bug] Update files from catalog - iptc - https://newsgroup.xnview.com/viewtopic.php?t=49152
3668: [Bug] Viewer - crop - selection size - https://newsgroup.xnview.com/viewtopic.php?t=49121
3667: [Bug] Find similar - no result with jpeg embedded thumbnail - https://newsgroup.xnview.com/viewtopic.php?t=49096
3666: [Bug] No more selection after filtering - https://newsgroup.xnview.com/viewtopic.php?t=49138
3665: [Bug] Settings - restart - https://newsgroup.xnview.com/viewtopic.php?t=43799
3664: [Bug] Browser - category sets - formatting issue with autoassign - https://newsgroup.xnview.com/viewtopic.php?t=49181
3663: [Bug] Browser - fullscreen - video file not shown - https://newsgroup.xnview.com/viewtopic.php?t=49151
3662: [Bug] Parent category is not assigned from Catalog filter - https://newsgroup.xnview.com/viewtopic.php?t=49080
3661: [Bug] Sort order is not changed in viewer - https://newsgroup.xnview.com/viewtopic.php?t=49074
3660: [Bug] Focus change after renaming a file if file is hidden after
3659: [Bug] Thumbnails toolbar setting - https://newsgroup.xnview.com/viewtopic.php?t=49139
3658: [Bug] Thumbnails always use grayscale when printing - https://newsgroup.xnview.com/viewtopic.php?t=49132
3628: [Bug] Export - focus - https://newsgroup.xnview.com/viewtopic.php?t=49028
3657: [Bug] Current item after delete selection - https://newsgroup.xnview.com/viewtopic.php?t=49135
3656: [Bug] Search - translations - https://newsgroup.xnview.com/viewtopic.php?t=49131
3655: [Bug] Animated WebP - not displayed correctly - https://newsgroup.xnview.com/viewtopic.php?t=49105

А куда делся PDF-XChange Editor?