# vmprofiler-qt - VMProtect 2 QT Virtual Instruction Trace Inspector vmprofiler-qt is a GUI program designed to view trace files generated by vmtracer programs. Currently um-tracer is the only program that will generate a trace file, however in the near future another repo will be added using unicorn to generate traces. A trace is simply a file that contains all native register values, virtual stack values, virtual register values, for every single executed virtual instruction. This allows for very indepth analysis of the executed virtual instructions. Without this level of information it is very difficult to make sense of virtual instructions and the effects on the virtual stack.