utils_win32: calling SHGetPathFromIDList under NT is useless and broken

The call was done under NT when running as a service (CGI script for instance) and always crash, even in interactive processes.

mercurial/util_win32.py

@@ -190,7 +190,7 b' def system_rcpath_win32():'
 def user_rcpath_win32():
     '''return os-specific hgrc search path to the user dir'''
     userdir = os.path.expanduser('~')
-    if userdir == '~':
+    if sys.getwindowsversion() != 2 and userdir == '~':
         # We are on win < nt: fetch the APPDATA directory location and use
         # the parent directory as the user home dir.
         appdir = shell.SHGetPathFromIDList(