Problem: The icons on my desktop are wrong, all show IrfanView/Firefox/etc.Why Windows File Explorer shows IrfanView (or some standard) icon for images instead of thumbnail?.Can I add more PlugIns to the App version (from Microsoft Store)?.How can I change the desktop icon for IrfanView?.How can I change the icon for IrfanView associations?.How can I play QuickTime MOV (or any other video) files with IrfanView?.Problem: If I try to play some AVIs, I get the error message 'Video not available, cannot find MJPG decompressor'!.Generic problem with video files: If I try to play some videos (AVI, MP4, MOV etc.): the video is not playing, or I get the error message 'Video not available, cannot find decompressor'!.How can I set IrfanView as my default viewer?.How to Upgrade IrfanView: Is it necessary to uninstall the older version before installing the newer version?.How to properly install IrfanView or Plugins?.Is there a direct download link for IrfanView and Plugins?.