I have 4 registry keys that are added and removed monthly to a Win2k3 server. The keys are:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AsyncMac\EnumHKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AsyncMac\Enum|0HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AsyncMac\Enum|CountHKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AsyncMac\Enum|NextInstanceDoes anyone have any information on these keys? What program are they related to etc.?

Hello, Based on the research I have found that the registry key KEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AsyncMac\EnumContains a set of subkeys that allow you to configure values that are specific to the WAN miniport driver, such as the maximum packet size a miniport driver will receive from a link.Please refer the follwing MSDN article for more information.http://msdn.microsoft.com/en-us/library/aa932434.aspxThanks and Hope it HelpsSyed Khairuddin

Hi,From the Registry Key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AsyncMac We can find its ImagePath is "system32\DRIVERS\asyncmac.sys". asyncmac.sys is MS Remote Access serial network driver, a System File. Generally speaking, subkey Enum represents the RAS Async adapter. the RAS Async Adapter is installed when installing RRAS. However, it seems that it is also installed when launching Office 2003 application. Did the adding and removing Registry occur when launching Office programs?Did you change Network settings on this server? If there is any error about it, please let us know the detailed error message. Thanks.