Depending on your configuration options when installing IrfanView, it may automatically open whenever you double-click certain image or multimedia files in Windows Explorer. You may later wish to change these associations by adding or removing file types to / from the list that automatically open IrfanView.

1. Choose "Options" - "Properties".

2. When the "Properties" multi-tabbed dialog box appears, click the "Extensions" tab.

3. You can check or uncheck file types to alter their IrfanView association status. For shortcuts, use the following buttons:

* "Select all" - Select all possible IrfanView associations
* "Images only" - Select all possible image types for IrfanView association
* "Clear all" - Do not associate IrfanView with any file types.

4. If desired, check the "Other" box and add other possible associations separated by the pipe character "|". Note that by doing so you assume that IrfanView already has the code built-in to handle such associations.

5. When done with your selections, press "OK" to close the dialog box.

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