PEBrowse Professional Interactive and PEBrowseDbg64 Interactive build upon the framework presented by PEBrowse Professional to create very powerful, versatile, and customizable Win32 and Win64 user mode debuggers/disassemblers, respectively. PEBrowse Interactive is not a source code debugger, but operates at the Intel x86 instruction level and therefore at the lowest level where your program executes. The debugger fully supports Microsoft .NET managed processes and seamlessly allows interop or mixed-mode debugging. PEBrowseDbg64 Interactive is an x64 native-code debugger that fully supports 32 and 64-bit .NET programs, includes using pre-JITted metadata to set breakpoints and steps through .NET thunks. PEBrowse Interactive can be set as the startup debugger using the system registry Image File Execution Options key – useful for debugging ASP.NET applications.