Data type Range Default value
REG_DWORD Time in 100-nanosecond units 20000000 (2 seconds)


(This entry has limited use in Windows 2000. See Notes below.)

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 notion 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 Image 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. Thereafter, it uses only the entries in Enum.