Parameters\MouseSynchIn100ns

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

HKLM\SYSTEM\CurrentControlSet\Services\i8042prt\Parameters

Data type Range Default value

REG_DWORD

Time in 100-nanosecond units

20000000 (2 seconds)

Description

Specifies the length of time after which the next mouse interrupt is assumed to indicate the start of a new mouse packet (partial packets are discarded). This enables the driver to synchronize its internal record of the mouse packet state with the hardware state when a mouse interrupt is lost.

Consider modifying this value if the system appears to be generating extra mouse events, such as when objects are selected although the mouse button has not been pressed.

Note

  • This entry is used only when a device is installed. When the system recognizes a new device, it copies this entry to a device-specific subkey in the Enum Subkey subkey. Thereafter, it uses only the entries in Enum.