64 bit testing tools

Sometimes you want to check  if an exe file or DLL is 64bit or its dependencies etc.
These tools can help you:

• EXE 64 bit Detector: (basic)

command-line tool to find if file is 32-bit or 64-bit Executable

• Dependency Walker: (advanced)

free utility that scans any 32-bit or 64-bit Windows module (exe, dll, ocx, sys, etc.) and builds a hierarchical tree diagram of all dependent modules.
Very useful for troubleshooting system errors related to loading and executing modules. Dependency Walker detects many common application problems such as missing modules, invalid modules, import/export mismatches, circular dependency errors, mismatched machine types of modules, and module initialization failures.