Hi -
If I'm understanding your question correctly, "manifests" are a .Net thing: you're not going to find them in standard Win32 (or earlier) binaries (.dll's or .exe's).
If you've got Visual Studio, then "dumpbin.exe" is a great tool (for old-style .dll's and .exe's).
In the .Net world, ".Net Reflector" is an absolute must-have. Along with ildasm.exe (included only in the .Net Platform SDK, *not* just the Visual Studio IDE!!!):
http://en.wikipedia.org/wiki/.NET_Reflector
'Hope that helps .. PSM