If all you want to do is change the application that opens when you double-click a document icon, just hold down Shift as you right-click the document and then choose Open With (in Windows 95, 98, and 98 SE). In Windows 2000, you may need to choose Open With, Choose Program (see the previous tip). Then you either select an application from the list, or click Other to browse for the right one. Now click Open. In the Open With dialog box, be sure to check Always use this program to open this type of file and click OK.