You can choose to customize the display of bootup splash screens in version 5.x and up by setting the following registry keys:
The following registry values (1=disabled) have been added and will be checked to determine if the splash screen should be disabled. The task delay registry settings have been displayed as shown below.
If the following registry setting points to a valid bitmap, it will be used.
CustomBootupSplash (String)(pointing to custom bitmap e.g. 'c:\bitmap.bmp')