SoftICE是一个工作在Windows核心模式下的除错工具。常用于软件的逆向工程，例如破解软件的保护，或寻找软件的注册码。

SoftICE is a kernel mode debugger for Microsoft Windows up to Windows XP. Crucially, it is designed to run underneath Windows such that the operating system is unaware of its presence. Unlike an application debugger, SoftICE is capable of suspending all operations in Windows when instructed. For driver debugging this is critical due to how hardware is accessed and the kernel of the operating system functions. Because of its low-level capabilities, SoftICE is also popular as a software cracking tool.