IrfanView Frequently Asked Questions (original) (raw)

Section 1. Download, installation, system settings

Section 2. Picture editing and display

Section 3. Working with formats, file conversions, batch mode, browsing

Section 4. Advanced options and features

Section 5. Features for Administrators

Section 6. Miscellaneous


  1. Please take care when downloading IrfanView from software sites which are not listed on the Downloads page.
  2. Some sites use custom/unknown downloaders which can contain malware or ask you to pay for a (free!) download.
  3. The original filenames and SHA-checksums of IrfanView and Plugins installer are visible on the Downloads page.


  1. If you have Windows 10/11, you can install it from Microsoft Store:
    You need to install 2 (!!) extensions from Microsoft Store: HEVC Video Extensions from Device Manufacturer AND HEIF Image Extensions.
    or
  2. Download and install the HEIC Codec, version 1.0.1 and later (Freeware, for Win7/Win8/Win10/Win11).
    HEIC Codec
    or
  3. Search on internet for the "CopyTrans HEIC" Windows codec and install it (Free for personal use, for Win7/Win8/Win10/Win11).
    CopyTrans HEIC Codec


  1. Set your IrfanView options (properties etc.).
    Now, set the INI file "i_view32.ini" to read only.
    The users can't change IrfanView options anymore.
  2. To prevent the registry changes (associations), you can hide the Properties->Extensions dialog.
    Write in the INI file:
    ShowExtensionsDlg=0 in section [Extensions].
  1. Write in the global INI file (i_view32.ini on server):
  1. IrfanView:
  1. PlugIns:
  1. Uninstall:
  1. Fixed toolbar buttons:
  1. Disable deleting of single files:
  1. Disable file browsing:
  1. If IrfanView is installed on a server, start IrfanView in admin mode and insert the license. It will be saved in the global INI file and used for all users.
  2. If IrfanView is installed on local clients, start IrfanView in admin mode and insert the license. Distribute the global INI file, copy it to the IrfanView folder on local clients.
    Here is an example of a minimal INI file (5 lines only) for the IrfanView folder: