Is IrfanView (32 bit) compatible with Windows 10/Windows 8/Windows 7/Vista 64 bit?.

If I start IrfanView, I am prompted each time to start as Administrator, why?.

Is there a portable IrfanView version (for USB sticks, CDs etc.)?.

I downloaded IrfanView (or PlugIns) but when I start it, I get the message ' This is not a valid (Win32) application'?.

Problem: The Add button in the slideshow/batch dialog won't add the selected file to the file list.

Problem: IrfanView won't save settings or there is a warning about read-only INI file.

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?.

How to change thumbnail of mp4 file