I finally got SoftICE 4.05 to work for Windows XP. I also downloaded the symbols with SymChk, a tool that comes with the free Debugging Tools for Windows package from Microsoft. I need something that will convert the .pdb symbol files to .nms for use in SoftICE. If anyone has Symbol Retriever (comes with DriverStudio) or another tool that can do this, please let me know. My e-mail is phleanor@hotmail.com. My AIM handle is Phleanor. Thanks in advance!