To receive MIDI from Ctrl for iPad onto a Windows PC you will be required to run RTP-MIDI.
RTP-MIDI is a free utility created by Tobias Erichsen back in 2010 and is a Windows implementation of Apple's RTP-MIDI driver. This allows you to create and add devices to a MIDI session. – As iPadOS devices do not support MIDI session initiation functionality a session should be created within the utility for your iPad to join.
The RTP-MIDI driver utility works with Windows XP, Vista, 7, 8, 8.1 and 10, on both 32 and 64 bit systems.
The driver uses a configuration panel very similar to Apple’s and is fully compliant with Apple's MIDI implementation making it the perfect companion to Ctrl for iPad.
Similarly to Apple's driver, the RTP-MIDI driver creates virtual MIDI ports, which become visible to any MIDI application running on the PC you wish to send commands to.
After your PC is connected to the same network and session as your iPad, you should be able to begin to receive MIDI commands from Ctrl for iPad over the network to your PC.