diff --git a/tren.py b/tren.py
index ea04de8..af85419 100755
--- a/tren.py
+++ b/tren.py
@@ -8,7 +8,7 @@
 PROGNAME = "tren.py"
 BASENAME = PROGNAME.split(".py")[0]
 PROGENV  = BASENAME.upper()
-RCSID = "$Id: tren.py,v 1.201 2010/03/18 21:54:30 tundra Exp $"
+RCSID = "$Id: tren.py,v 1.202 2010/03/18 23:41:46 tundra Exp $"
 VERSION = RCSID.split()[2]
 
 # Copyright Information
@@ -137,26 +137,27 @@
 # Literals
 #####
 
-ARROW        =  "--->"        # Used for formatting renaming messages
-ASKDOREST    =  "!"           # Do rest of renaming without asking
-ASKNO        =  "N"           # Do not rename current file
-ASKQUIT      =  "q"           # Quit renaming all further files
-ASKYES       =  "y"           # Rename current file
-COMMENT      =  "#"           # Comment character in include files
-DEFINST      =  0             # Default replacement instance
-DEFLEN       =  80            # Default output line length
-DEFSEP       =  "="           # Default rename command separator: old=new
-DEFSUFFIX    =  ".backup"     # String used to rename existing targets
-DEFESC       =  "\\"          # Escape character
-INCL         =  "I"           # Include file command line option
-INDENT       =  "    "        # Indent string for nested messages
+ARROW        =  "--->"          # Used for formatting renaming messages
+ASKDOREST    =  "!"             # Do rest of renaming without asking
+ASKNO        =  "N"             # Do not rename current file
+ASKQUIT      =  "q"             # Quit renaming all further files
+ASKYES       =  "y"             # Rename current file
+COMMENT      =  "#"             # Comment character in include files
+DEFINST      =  0               # Default replacement instance
+DEFLEN       =  80              # Default output line length
+DEFSEP       =  "="             # Default rename command separator: old=new
+DEFSUFFIX    =  ".backup"       # String used to rename existing targets
+DEFESC       =  "\\"            # Escape character
+INCL         =  "I"             # Include file command line option
+INDENT       =  "    "          # Indent string for nested messages
 NULLESC      =  "Escape string"                   # Cannot be null
 NULLRENSEP   =  "Old/New separator string"        # Cannot be null
 NULLSUFFIX   =  "Forced renaming suffix string"   # Cannot be null
-OPTINTRO     =  "-"           # Option introducer
-RANGESEP     =  ":"           # Separator for instance ranges
-SINGLEINST   =  "SINGLEINST"  # Indicates a single, not range, replacement instance
-
+OPTINTRO     =  "-"             # Option introducer
+RANGESEP     =  ":"             # Separator for instance ranges
+SINGLEINST   =  "SINGLEINST"    # Indicates a single, not range, replacement instance
+WINDOWSGROUP =  "WindowsGroup"  # Returned on Windows w/o win32all
+WINDOWSUSER  =  "WindowsUser"   # Reutrned on Windows w/o win32all
 
 #####
 # Replacement Token Literals
@@ -349,7 +350,7 @@
 eTOKBADSEQ         =  "Unknown sequence renaming token, '%s'!"
 eTOKDELIM          =  "Renaming token '%s' missing delimiter!"
 eTOKRANDIG         =  "Renaming token: '%s' has invalid random precision!  Must be integer > 0."
-eTOKUNKNOWN        =  "Renaming token '%s' is unknown type!"
+eTOKUNKNOWN        =  "Unknown renaming token, '%s'!"
 eTOOMANYINC        =  "Too many includes! (Max is %d) Possible circular reference?" % MAXINCLUDES
 
 
@@ -778,7 +779,7 @@
             return grp.getgrgid(gid)[0]
 
         else:
-            return "win32group"
+            return WINDOWSGROUP
 
     # End of 'GetFileGroupname()'
 
@@ -793,7 +794,7 @@
             return pwd.getpwuid(uid)[0]
 
         else:
-            return "win32user"
+            return WINDOWSUSER
 
     # End of 'GetFileUsername()'