I found this gem in Dan Maharry's RSS feed as part of his del.icio.us bookmarks. It's a few registry edits to stop Windows Explorer auto-selecting a different folder view based on its content, e.g. normally if a folder happens to have a GIF or JPEG in it, Explorer will "helpfully" switch to thumbnail view.
Keith Miller posted a registry tweaks in the TechNet forums which I've rolled up here (mostly for for my own convenience) into a single batch file which also restarts Explorer:
setlocal set BASE_KEY=HKCU\Software\Classes\Local Settings\Software\Microsoft\Windows\Shell :: Delete cached folder views reg delete "%BASE_KEY%\Bags" /f reg delete "%BASE_KEY%\BagMRU" /f :: Set default folder template reg add "%BASE_KEY%\Bags\AllFolders\Shell" /v FolderType /d NotSpecified :: Restart Explorer taskkill /f /im explorer.exe start explorer.exe
If you don't know what a batch file is or how to use it then you shouldn't be using this :-p. Likewise, it works for me but your mileage may vary...