W32Dasm is a disassembler and debugger for 16- and 32-bit Windows applications. It includes search functions, tracing, the ability to execute text, and more. Features of W32Dasm include: full cross referencing for all call and jump instructions, support for MMX, and search functions. It comes with an integrated debugger that has single step and breakpoint functions. It also includes Memory, Register and CPU Flag modification functions coupled with a unique Data Display System. An automatic interpreter for most KERNEL32, USER32, SHELL32, COMDLG32, COMCTL32, GDI32, and ADVAPI32 API functions is also part of W32Dasm.