Index: wafadmin/Runner.py
===================================================================
--- wafadmin/Runner.py	(revision 3760)
+++ wafadmin/Runner.py	(working copy)
@@ -66,9 +66,11 @@
 	debug("system command -> "+ s, 'runner')
 	if Params.g_verbose or g_quiet: printout(s+'\n')
 	# encase the command in double-quotes in windows
-	if sys.platform == 'win32' and not s.startswith('""'):
-		s = '"%s"' % s
-	proc = subprocess.Popen(s, shell=1, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+	#if sys.platform == 'win32' and not s.startswith('""'):
+	#	s = '"%s"' % s
+	startupinfo = subprocess.STARTUPINFO()
+	startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
+	proc = subprocess.Popen(s, shell=0, startupinfo=startupinfo, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
 	process_cmd_output(proc)
 	stat = proc.wait()
 	if stat & 0xff: return stat | 0x80
@@ -79,9 +81,11 @@
 	debug("system command (interact) -> "+ s, 'runner')
 	if Params.g_verbose or g_quiet: printout(s+'\n')
 	# encase the command in double-quotes in windows
-	if sys.platform == 'win32' and not s.startswith('""'):
-		s = '"%s"' % s
-	proc = subprocess.Popen(s, shell=1)
+	#if sys.platform == 'win32' and not s.startswith('""'):
+	#	s = '"%s"' % s
+	startupinfo = subprocess.STARTUPINFO()
+	startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
+	proc = subprocess.Popen(s, shell=0, startupinfo=startupinfo)
 	stat = proc.wait()
 	if stat & 0xff: return stat | 0x80
 	return stat >> 8