PE Explorer is the most feature-packed tool for inspecting the inner workings of PE files (EXE, DLL, ActiveX, and other Windows executable formats). It offers a thorough look at PE file structure and all of the resources in the file, and tells you just about every little detail you could possibly want to know about a PE file. PE Explorer comes with a Resource Editor, API Function Syntax Lookup, Dependency Scanner, UPX Unpacker, and Disassembler.
