Windows XP and Tweak UI
Fix Broken Explorer Icons
SUMMARY: Windows XP icons looking funny? This tweak can set them straight.

After you use Windows XP for a while, you may notice that certain icons no longer represent their correct file types. For example, MP3 icons may look like Notepad icons, Microsoft Word documents may look like Excel spreadsheets, etc. If this happens, then your icon cache file has gotten corrupt.

To fix this problem, you can run Tweak UI for Windows XP (download and execution instructions are elsewhere on MalekTips). Click the “Repair” link, then in the right pane of Tweak UI, click on the pull-down and choose “Rebuild Icons”. Click “Repair Now”, then “OK” to close the dialog box.

From: http://malektips.com/