Howto : Re-create Exchange 2003 IIS virtual Directories

1. When it’s possible to save/export the configuration do so.
2. Delete the virtual directories (exchange, public, oma etc.)
3. Download Metabase explorer and remove the DS2MB key (first key on the top) in orde to force recreating the directories.  Download it here : MetabaseExplorer.renametozip
4. Restart MS Exchange system attendant service and test OWA/OMA etc

You have to wait for about 15 minutes or just restart the server to speed things up. (I prefer the latest, sometimes some processes don’t restart perfectly)