Release notes of CallbackFilter 4.1
The main change in CallbackFilter 4.1 is that if you use Minifilter mode, you are required to set Altitude of the mini-filter driver. Here's the list of changes, related to this requirement:
- InstallDriverEx() method got an extra Altitude parameter
- FilterMode property can not be set to MinifilterMode if you have not set Altitude before
- An attempt to read Altitude property can lead to an exception being thrown in the case when the altitude has not been set.