This policy setting controls whether or not errors are reported to Microsoft.Error Reporting is used to report information about a system or application that has failed or has stopped responding and is used to improve the quality of the product.If you enable this policy setting users are not given the option to report errors.If you disable or do not configure this policy setting the errors may be reported to Microsoft via the Internet or to a corporate file share.This policy setting overrides any user setting made from the Control Panel for error reporting.Also see the "Configure Error Reporting" "Display Error Notification" and "Disable Windows Error Reporting" policy settings under Computer Configuration/Administrative Templates/Windows Components/Windows Error Reporting.
System\Internet Communication Management\Internet Communication settings
Machine
At least Windows Server 2003 operating systems or Windows XP Professional
HKLM\Software\Policies\Microsoft\PCHealth\ErrorReporting!DoReport HKLM\Software\Policies\Microsoft\Windows\Windows Error Reporting!Disabled
ICM.admx