As long as it doesn't require linking to a proprietary Windows library to interface with the NT api. That would violate at least the GPL 2. Though you could do

As long as it doesn't require linking to a proprietary Windows library to interface with the NT api. That would violate at least the GPL 2. Though you could do it yourself, and release your own code as GPL (and the combined work as proprietary), no one else could distribute the full work under the GPL because of the incompatibility.