Online PE (Portable Executable, .EXE, .DLL) header viewer, no upload needed
Direct URL
This webapp reads the selected executable file with the HTML5 FileReader and displays the PE headers.
The most important information is the "Import directory" where you can check what dlls are used by the application and see the functions imported from the dlls.
This will work in browsers supporting HTML5 FileReader API and typed arrays.
Tested with Firefox 4 and Google Chrome 11.