Application errors may be sent to Microsoft without notifying you
According to Microsoft “Some 2007 Office programs that run on Microsoft Windows XP Service Pack 2 (SP2) and on Microsoft Windows Server 2003 use Microsoft Application Error Reporting (DW 2.0) to report problems to Microsoft. If an unsafe COM control is detected, these programs may unintentionally send problem reports to Microsoft without first verifying that you have granted permission for the reporting operation. The problem reports that may be sent to Microsoft do not contain personal information.”
I strongly recommend that you do not enable Error Reporting to Microsoft on any computer under any condition. The information is sent to Microsoft unencrypted and according to Microsoft’s own security experts, error reporting should be disabled. You should keep a close eye on each Microsoft operating system and application because even if you have error reporting disabled, Microsoft may enable it at some point without notifying you, either with an update or service pack. Sometimes it may be intentional, while other times it may bee accidental, as explained in the KB article 932080. The title of the article should have been “Application errors may be sent to Microsoft without notifying you” but it only says “Description of the update for the 2007 Office programs: April 9, 2007.”
You can either download the patch from Microsoft Download Center or install it as part of Windows Update.