Custmize Outlook

Installing Outlook and duplicating custom settings
First, you must install Outlook 2000 on your new computer, but do not start the program.
To duplicate your custom settings on your new computer, you'll need to copy any of the following that you've customized: personal folders files (.pst), shortcuts, toolbar or menu customizations, rules, nicknames, signatures, stationery, Personal Address Book, and custom categories.
Note For detailed information about any of the steps below, type the step text in the Office Assistant or on the Answer Wizard tab in the Outlook Help window, and then click Search.
Copy the following from your old computer to the same location on your new computer
Personal folders files (.pst) that you use Your program information from Outlook is stored in a personal folders file, which has the extension .pst. It is usually located in C:\Windows\Local Settings\Application Data\Microsoft\Outlook or C:\Windows\Profiles\User Name Local Settings\Application Data\Microsoft\Outlook if more than one person uses Outlook on your computer. If you have an offline folder (.ost) file, do not copy it -- a new one will be created on your new computer.
Outlook shortcuts Copy the Profile Name.fav file, usually located in C:\Windows\Application Data\Microsoft\Outlook or C:\Windows\Profiles\User Name\Application Data\Microsoft\Outlook if more than one person uses Outlook on your computer. If you have more than one Outlook profile, you'll have a separate .fav file (Profile Name.fav) for each profile.
Menu or toolbar customizations Copy the Outcmd.dat file, located in C:\Windows\Application Data\Microsoft\Outlook or C:\Windows\Profiles\User Name\Application Data\Microsoft\Outlook if more than one person uses Outlook on your computer.
Rules Copy the Profile Name.rwz file, located in C:\Windows\Application Data\Microsoft\Outlook or C:\Windows\Profiles\User Name\Application Data\Microsoft\Outlook if more than one person uses Outlook on your computer. If you have more than one Outlook profile, you'll have a separate .rwz file (Profile Name.rwz) for each profile.
Nicknames (shortened versions of e-mail names that Outlook matches to actual e-mail addresses) Copy the Profile Name.nick file, located in C:\Windows\Application Data\Microsoft\Outlook or C:\Windows\Profiles\User Name\Application Data\Microsoft\Outlook if more than one person uses Outlook on your computer. If you have more than one Outlook profile, you'll have a separate .nick file (Profile Name.nick) for each profile.
Signatures Copy all the files with .rtf, .htm, .html, or .txt file name extensions in C:\Windows\Application\Data\Microsoft\Signatures or C:\Windows\Profiles\User Name\Application Data\Microsoft\Signatures if more than one person uses Outlook on your computer.
Stationery If you've created stationery, copy all the files in C:\Windows\Application Data\Microsoft\Stationery or C:\Windows\Profiles\User Name\Application Data\Microsoft\Stationery if more than one person uses Outlook on your computer.
Personal Address Book Before copying your Personal Address Book to your new computer, you must first identify the path to your Personal Address Book (.pab) file in your mail profile. Then you can search for the .pab file on your old computer and copy it to your new computer.
Finding and copying your .pab file
1. Start Outlook.
2. On the Tools menu, click Services.
3. On the Services tab, click Personal Address Book, and then click Properties.
4. Note the path to your .pab file. It is usually in C:\Windows\Local Settings\Application Data\Microsoft\Outlook and is named Mailbox.pab.
5. Click OK twice, and then, on the File menu, click Exit and Log Off.
6. Use the Microsoft Windows® Find feature to search for your .pab file, and then copy it to your new computer. You can save the .pab file in any directory on the new computer, but be sure to note the location for use later.
Note If you have more than one Outlook profile, you'll have a separate .pab file for each profile. It's not possible to merge one Personal Address Book with another. However, you can use the Import and Export Wizard to merge all the e-mail addresses in your Personal Address Books into your Contacts folder.
Custom categories If you've added custom categories to your Master Category List, you can export the Categories key from your registry and move this key to your new computer.
Note If you've added only a few custom categories to your Master Category List, you may want to skip this section and add the categories manually to the Master Category List on your new computer.

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Source microsoft.office.com