That's interesting you discovered that. Were they WASAPI or RI drivers?UltimateOutsider wrote:Driver latency is drastically increased on Win 8. You can see this by running DPC Latency checker on a PC running Win 7 and then on the same PC after upgrading to Win 8. It is said that this is indeed due to some power saving features which do not appear to be user-configurable.
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The current Windows Software Development Kit (SDK) doesn't indicate anything is changing that would prevent prior VSTs from functioning correctly. In the past there were issues with run-time library incompatibility for different SDK releases. Some time ago Microsoft introducd a new system for supporting multiple run-time libraries simultaneously, so if you did have problems in the past, and your VST host binaries are less than a few years old, it shouldn't happen again.
The MIDI interface should also still work, but MIDI predates plug and play. Some are finding they have to quit the application and restart it for some MIDI interfaces. There are some indications the USB MIDI interfaces are better, because they can to some extent piggyback on USB plug and play. Applications may connect to the MIDI driver at an older interface level, and it's still in the SDK, in fact it is the oldest driver code in the SDK. That's as much as I know at the moment.
the VST interface itself is not in the SDK. It, like ASIO, is a Steinberg proprietary interface which Steinberg made open to the industry to foster growth. And it was certainly successful in that )



