# Associating dvi files with dviout

Although this is automatically set by "Option->Install", it can be set by the following operations.
Start Windows Explorer (Click "Start Menu->Program->Explorer" in Windows by the mouse) and select "Display->Option->File Type->Add" from the menu bar to move to the "Add New File Type" sheet.
Associating dviout to the dvi file.
Define dvi in the associated extension and add the description like DVI file in the type description.
If you select "Add" to move to the sheet for a new action, define open in the action, and select dviout.exe in the reference (double click on the left mouse button), then the dviout is defined in the application that executes the action.
Set the icon on the dvi file.
Press "OK" to return to the sheet for adding a new file and select the icon change.
Press "Reference" on the sheet for changing the icon and select dviout.exe (for example, double click the left mouse button). Then select the icon you like and return to adding the new file type. Press "Exit" and finally press "OK" in the option sheet in the Explorer to exit the setting.
When you double-click the dvi file icon by the mouse, the file is previewed by dviout(cf. no more dviout, -multi:).