%USERPROFILE%\RoutlingVASIO.toml holds the sample rate and buffer size the Virtual ASIO driver reports to your DAW. Routling keeps it in step with its own settings; you do not normally edit it.

sampleRate = 48000
bufferSize = 512
KeyAccepted
sampleRate44100, 48000, 88200, 96000, 176400, 192000
bufferSize32 to 4096

Other values are ignored. When the file changes, the driver asks the DAW to reset, so audio in the DAW pauses briefly.

ASIO® is a registered trademark of Steinberg Media Technologies GmbH.