NT4 copies the Win95 feature of using animated rectangles to provide a “zooming”
effect when windows are opened and closed. To control
Hive: HKEY_CURRENT_USER
Key:
Control
Panel\Desktop\WindowMetrics
Name: MinAnimate
Type: REG_DWORD
Value: 0 disable
Value: 1 enable
See q226931 – How to Minimize Graphics Use with Terminal Server if
you want to minimize the effects for terminal server users.