Whoah! You brave soul :) This module is extremely unlikely to work on any other OS than Linux. However if you do find that it works please tell the author so the documentation and perhaps even the name of the module can be updated. Checking if your kit is complete... Looks good Writing Makefile for Linux::Fuser Microsoft (R) Program Maintenance Utility Version 7.10.3077 Copyright (C) Microsoft Corporation. All rights reserved. cp lib/Linux/Fuser.pm blib\lib\Linux\Fuser.pm C:\cpanrun\build\5-10-0\bin\perl.exe -MExtUtils::Command -e cp examples/pfuser blib\script\pfuser pl2bat.bat blib\script\pfuser 'pl2bat.bat' is not recognized as an internal or external command, operable program or batch file. NMAKE : fatal error U1077: 'pl2bat.bat' : return code '0x1' Stop.