Is it possible to determine the working directory of another process?

Question

Given a HANDLE (or ProcessID) to process \'A\' is it possible on Win32 for an unrelated process \'B\' to determine the current working directory of process \'A\' ?

Answer 1

I thought this may be possible using the same technique you can use to get an external processes command line and there does seem to be a _RTL_USER_PROCESS_PARAMETERS->CurrentDirectoryPath which sounds promising.

(The example doesn't state that the APIs are largely undocumented and that they are not future proof, so YMMV)