I am attempting to connect a Pocket PC via a serial port to a new Compaq D530SFF running Windows XP. I get noises like I am connecting. I have Active Sync 3.6. This scanner is for Best Softwares Inventory management software. I get an error stating "Cannot start communications with the desktop computer. Winsock services could not start due to a critical error. Error 10054. Please reconnect your device. If the problem persists see the troubleshooting section of your Microsoft ActiveSync help." I have restarted, uninstalled all software, and reinstalled to no avail. Any suggestions?