If you read DelphiFeeds.com or some of the existing Delphi blogs regularly, you already know the following article. If you haven’t seen it yet and use Delphi, this article is highly recommended:
Creating Windows Vista Ready Applications with Delphi
The article describes some code changes to make Delphi applications take advantage of the new Windows Vista features like the new open dialog, window preview in the taskbar and the new task dialogs. Although these tweaks make Delphi applications more Vista compliant, there is actually surprisingly little to do to make Delphi applications work on Microsoft’s new OS.