Although Microsoft Outlook, Microsoft Windows Mail, and Microsoft Outlook Express can send and receive e-mail through the Internet, they are different programs with different capabilities. You cannot synchronize the information stored in these programs. If you have an e-mail message that is stored in Windows Mail or in Outlook Express, that e-mail message is not automatically available in Outlook. This article explains how to export the messages from Windows Mail and from Outlook Express into Outlook.

Microsoft Outlook and Microsoft Outlook Express are different programs with different capabilities, although both can send to and receive e-mail from the Internet. There are two ways to share contact information between these two programs. If, during Outlook Active Setup, you choose to upgrade a program that uses the Windows Address Book, Setup will do a silent conversion of the address entries to the Contact format used by Outlook.

After installing, Microsoft Outlook starts automatically when you connect to your Internet Service Provider (ISP) and check for mail.

In Microsoft Outlook 2002, when you try to open an e-mail message that you saved in Microsoft Office Outlook 2007 or in Microsoft Office Outlook 2003, you receive the following error message:

This article describes how to create a new e-mail profile in Microsoft Office Outlook 2007

and Microsoft Office Outlook 2003. Additionally, this article describes how to configure Outlook 2007 and Outlook 2003 to start with a specific profile and how to configure Outlook 2007 and Outlook 2003 to prompt you for a specific e-mail profile when you start the program.

When you open a new message in Microsoft Outlook, you may find that the Send button on the toolbar is missing or that when you click the File menu, the Send command is missing.

When you try to start Microsoft Office Outlook 2003, the program does not start.

Additionally, you receive the following error message: Cannot start Microsoft Office Outlook. MAPI32.DLL is corrupt or the wrong version. This could have been caused by installing other messaging software. Please reinstall Outlook.

This article describes how to import your Personal Address Book to Microsoft Office Outlook 2007.

This article describes how to troubleshoot performance issues in Microsoft Office Outlook 2007

You may experience one or more of the following performance issues in Outlook 2007:

• Outlook 2007 is slower than earlier versions of Microsoft Office Outlook.
• Outlook 2007 is slower than expected.
• Outlook 2007 is slower than expected when you access your mailbox.
• Outlook 2007 appears to be unresponsive.
• Outlook 2007 appears to stop responding for a long time.

You perform an in-place upgrade to Microsoft Office Outlook 2007 from one of the following Microsoft products:

• Microsoft Office Outlook 2003
• A version of Outlook that is earlier than Outlook 2003