-= INSTALLATION OF XBOX ADCPM CODEC =- 1) Right click "XBADPCMinst.inf", then click install. 2) When installation is complete: -Go to your Device Manager -Double click "Audio Codecs" -Go to the Properties tab -Double click "Xbox ADPCM Audio CODEC" -Be sure "Use this audio codec" is enabled -Change codec priority to 1 -Click "OK" NOTE: This has only been tested on Windows 2000 Pro and Windows XP Pro. Also, there may be side effects from changing the priority, but there have been no reports as of yet.