Norm, a lot of people have had great success running Windows Server or Server Essentials with Audiophile Optimizer. If you want to stick with Win7 I believe there is a free program that will optimize the settings for music. I think the program is called Fidelizer. I used it before switching to Server and thought it did improve the sound quality. Head over to computeraudiophile.com for more info.
As for JPLAY, I use in in conjunction with Jriver. I found the latest version of JPLAY to improve the sound a bit.
As for JPLAY, I use in in conjunction with Jriver. I found the latest version of JPLAY to improve the sound a bit.