PE Explorer
PE Explorer Disassembler is a tool for inspecting and editing the inner workings of Windows 32-bit executable files. It offers a look at PE file structure and all of the resources in the file, and reports multiple details about a PE file (EXE, DLL, ActiveX controls, etc). Once inside, file structure can be analyzed and optimized, hostile code detected, spyware tracked down, problems diagnosed, changes made and resources repaired.