There is a similar approach for a modern age - use the hypervisor for the debugger agent. The application called HDBG[1]. It was never production-ready though,

There is a similar approach for a modern age - use the hypervisor for the debugger agent. The application called HDBG[1]. It was never production-ready though, so not so famous. Another similar application is PulseDBG[2]. It's not exactly like SoftICE, but allows you to observe the execution process locally[3], which is sometimes enough. [1] http://fdbg.x86asm.net/hdbg/hdbg.html http://fdbg.x86asm.net/hdbg/hdbg.html [2] https://github.com/honorarybot/PulseDbg https://github.com/honorarybot/PulseDbg [3] https://github.com/honorarybot/PulseDbg/wiki/8.-Local-debugging https://github.com/honorarybot/PulseDbg/wiki/8.-Local-debugg...