The Microsoft Outlook Address Book is guarded programmatically. This helps to prevent another program from automatically accessing your Address Book or Contacts list or from sending messages on your behalf without your permission. It is very useful to allow some programs (like Microsoft ActiveSync® or Palm Desktop Support and Computer Support )to access your contact information so that you can synchronize your personal digital assistant (PDA). However, a virus or other malicious program file can use the same functionality to propagate itself. If a program attempts to access your Address Book, a warning appears on screen.

This message appears if a program tries to access your Address Book. In general, you cannot prevent this caution from appearing. However, check with your synchronization software vendor to see if recent updates to the vendor's software include interacting with Outlook in a trusted manner. This message is not displayed when Outlook interacts with trusted synchronization software

· Unless you clicked a command or started a program that is expected to interact with Outlook Address Book information or if you are just

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Outlook is designed to help protect your computer from viruses and junk e-mail messages. The following information focuses on the virus protection features in Microsoft Outlook.

Macro security

Outlook itself cannot detect whether a virus is present. Macro viruses are spread through attachments, not the e-mail message itself. Microsoft Office achieves macro virus protection by using the High macro security setting as the default. With the High setting, you can run only digitally signed macros from trusted sources or macros that you created yourself, as long as the installed add-ins and templates are trusted. Unsigned macros are automatically disabled.

Note Signing a macro is similar to getting a legal document notarized by a legal authority or getting your passport stamped by a government official. Electronic certificates are used to sign the macro code. Certificates are issued by a certificate authority, such as a bank, government, or software company, which should be trusted sources. For example, all macros that are pre-installed with Office are signed by the developers who created them using certificates issued by Microsoft that vouch for their authenticity.

If you change the macro security level to the less secure Medium setting,

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A macro is a series of commands and instructions that are grouped together as a single command to accomplish a task automatically. If you perform a task repeatedly in an application, you can automate the task by using a macro. You can store macros in documents, worksheets, or templates, which makes them available whenever a new file based on that template is created. For example, Microsoft Word stores user-recorded macros in the Normal template (Normal.dot) by default, so that they are available for use with every Word document. When you open the Word document, the macro runs. A macro virus is a virus program written in Microsoft Visual Basic® for Applications, the same macro language used in legitimate macros. A macro virus can also run automatically when you open a document unless there are safeguards in place. Most Microsoft Office programs display a confirmation dialog box when you choose to open a document that contains macros

How do viruses spread?

The Melissa virus in March 1999 spread in the form of an e-mail message with an attached Word document that contained a macro virus. Anyone who opened the attachment triggered the virus. The virus

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In addition to the default Microsoft Office Outlook Calendar, you can create other Outlook calendars. For example, you can create a calendar for your personal appointments.

1. In Calendar, on the File menu, point to New, and then click Calendar.

Note If you are in Mail, Contacts, Tasks, Journal, or Notes, on the File menu, point to New, and then click Folder. In the Folder contains list, click Calendar Items.

Type the calendar name as you want it to appear in the Navigation Pane.

Make sure Calendar Items is selected under Folder contains.

1. In the Create New Folder dialog box, in the Name text box, type a name for the folder.
2. In the Select where to place the folder list, click Calendar, and then click OK.

The new calendar appears in the Calendar Navigation Pane (Navigation Pane: The column on the left side of the Outlook window that includes panes such as Shortcuts or Mail and the

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