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1. If you changed the location as you were running out of space on C drive - you MUST ensure you have 10% at least free space on your system drive otherwise you will have all sorts of problems of which OE will be only a minor aspect.
2. I wiould not run any script to alter the 2Gb limit
See this, all being well you will be able to recover the messages from backup folders.http://answers.micro...fc-68b599b31bf5
you may need to follow the links provided on that Microsoft advice
Basically see firstly if you can find the backups
If you are running XP/SP2, or SP3, and are fully patched, then you should have a backup of your dbx files in the Recycle Bin, (or possibly the message store), copied as bak files.
To restore a bak folder to the message store folder, first find the location of the Message Store.
Tools | Options | Maintenance | Store Folder will reveal the location of your Outlook Express files. Write the location down and navigate to it in Windows Explorer or, copy and paste it into Start | Run.In WinXP, the .dbx files are by default marked as hidden. To view these files in Explorer, you must enable Show Hidden Files and Folders under Start | Control Panel | Folder Options | View.