Yes you can use a tool called
which seems to now live at www.dependencywalker.com/
] although that's not where I found it last so have some caution.
It will tell you what API the program or DLL is statically linked to but not of course about anything it uses by calling
. I use it a lot to inspect the interfaces on my own DLLs for things that shouldn't be getting exported or dependencies I hadn't spotted creeping in.