Using jde-ant build with default shell

Normally I use ntemacs and jdee with the Cygwin tools installed, but due to
some restrictions in a particular situation, I can use ntemacs & jdee but
not cygwin.  When doing an ant build (C-c C-v C-b), the build would fail
with:

cd k:/devel/projects/client/src/client/
ant -buildfile 'k:/devel/projects/client/build.xml' -emacs test  
Buildfile: 'k:\devel\projects\client\build.xml' does not exist!
Build failed

even though that is the correct build file. It turns out the default shell
for emacs (emacs/bin/cmdproxy.exe which is the Windows cmd.exe shell) does
not like the single quote marks that are surrounding the build file name.
To work around this, I made the following modifications to jde-ant.el
($Revision: 1.76.2.1 $ $Date: 2006/03/05 04:40:14 $) of the latest build
(2.3.5.1):

249,255c249,257
<          (delimiter (if (or
<                          (string= (car jde-ant-invocation-method) "Java")
<                          (and (string= (car jde-ant-invocation-method)
<                                        "Script")
<                               (not (featurep 'xemacs))))
<                         "'"
<                       "\""))
---
> 	 (delimiter (if (string-match "cmdproxy.exe" shell-file-name)
> 			"\""
> 		      (if (or
> 			   (string= (car jde-ant-invocation-method) "Java")
> 			   (and (string= (car jde-ant-invocation-method)
> 					 "Script")
> 				(not (featurep 'xemacs))))
> 			  "'"
> 			"\"")))

This changes the single quotes (') to double quotes (") if the shell is
cmdproxy, regardless of the invocation method.  It may fail when using the
ant server, but I don't use that so I'm not sure.

I'm an elisp novice, but this seems to work both when I have a cygwin bash
shell in use or the default Window's shell.  If there is a better way to
make this work I'd appreciate seeing it so I don't have to have a modified
version of the lisp files.

Thanks

Jere