In Outlook Express, go to Tools>Options>Maintenance tab and click on the Store Folder button. Then browse to wherever you want OE to keep its email and, once there, click OK. OE will always look to that drive and folder for its .dbx files so if he tries to run OE without the external drive plugged it, it won't open.
Changing the location of the address book is a little more involved...assuming he'd like the same address book available on both computer.
1. Set up the folder where you want the address book to be kept.
2. Go to Start>Run, type in "regedit" (without the quotes) and navigate to this key:
\HKEY_CURRENT_USER\Software\Microsoft\WAB\WAB4\Wab File Name
3. Click Registry| Export Registry File and save the selected branch to your desktop as "WAB.reg". You can then restore the current location simply by double-clicking the saved WAB.reg file.
4. In the right-hand pane, right-click on (Default) and click Modify, then carefully enter the full path and file name of your relocated *.wab.
Changing the location of the address book is a little more involved...assuming he'd like the same address book available on both computer.
1. Set up the folder where you want the address book to be kept.
2. Go to Start>Run, type in "regedit" (without the quotes) and navigate to this key:
\HKEY_CURRENT_USER\Software\Microsoft\WAB\WAB4\Wab File Name
3. Click Registry| Export Registry File and save the selected branch to your desktop as "WAB.reg". You can then restore the current location simply by double-clicking the saved WAB.reg file.
4. In the right-hand pane, right-click on (Default) and click Modify, then carefully enter the full path and file name of your relocated *.wab.