I have bought a scanner, which came with Adobe PhotoShop 3. Now if I double-click an image, Adobe PhotoShop 3 opens automatically. I have tried to disable it and failed, and Adobe is no help. I like the standard MS image viewing software that comes with Windows XP, especially the "View as slide-show" facility. Clive Pygott
Windows files usually end with a three-letter extension that can be assigned to the program you want to open it. Go to Windows Explorer, click Tools and select Folder Options. On the resulting Properties sheet, click the tab marked File Types. Scroll down to the JPG entry, and read the Details section: this will specify a program next to "Opens with". Click on the Restore button and XP will revert to whichever program was assigned to do this job.
If this still isn't the one you want, click on Change to see a list of the programs available, select Windows Picture and Fax Viewer, and click OK. Finally, close the Folder Options box. (Note: this program requires the MS06-001 security patch.)
Also bear in mind that if you right-click any file, Windows will show an in-context menu. If you right-click a JPeg and select Open With, this will let you choose from several programs that could open it. In your case, the options should include Windows Picture and Fax Viewer, Paint, and Internet Explorer, as well as Adobe PhotoShop 3.