After QuickTime 4 is installed, Windows assigns QuickTime Player and Picture Viewer as the default applications for certain kinds of files. This article explains how to assign a different program as the default application to open a specific kind of file.

1. Left-click a file of the file type you want to change.
This highlights the file.

2. Press and hold the Shift key on the keyboard.

3. Right-click the file.
A menu appears.

4. Choose Open With from the pop-up menu.
A window appears with applications you can use.

5. Click the checkbox next to the application you want to open the file with.

6. Click the checkbox next to "Always use this program to open this type of file".

7. Click OK.