Getting Emacs under Cygwin to run languages not in cygwin di

Getting Emacs under Cygwin to run languages not in cygwin directory
Situation:  I am running Emacs 24.4.1 under cygwin 2.8.50, on Windows 8.  I am trying to run a program environment
(Eclipse-CLP) that is located in "C:\Program Files (x86)\ECLiPSe 6.1\lib\i386_nt\eclipse.exe"

Eclipse-CLP has an Emacs mode which I have installed correctly.  But I am unable to invoke the prolog compiler or
other tools.  I get a "not found" error.

I figured out that the slashes in Windows path names need to be escaped with another back slash.  The
appropriate line in eclipse.el file looks like:

"C:\\Program Files (x86)\\ECLiPSe 6.1\\lib\\i386_nt\\"

and the "run eclipse" command is set to "eclipse.exe"
My Emacs error message reads:
"Searching for program: No such file or directory, C:\Program Files (x86)\ECLiPSe 6.1\lib\i386_nt\eclipse.exe"

But this is the exact directory I see when I go to the program location in Windows.

Prior to posting this, I have already tried using: windows-path.el and cygwin-mount.el, without much success.

Any advice on what to try next?