A new 64 bit version of MenuetOS was released that brings support for USB2.0 printers
For those of you that don't know what MenuetOS is here's a resume from their website
MenuetOS is an Operating System in development for the PC written entirely in 32/64 bit assembly language, and released under the License. It supports 32/64 bit x86 assembly programming for smaller, faster and less resource hungry applications.