INCLUDE = ;C:\strawberry\c\include;C:\usr\lib\CORE;
LIB = ;C:\strawberry\c\lib;C:\usr\bin;
PATH = C:\usr\bin;

and even added this :
PERL5LIB = C:\usr\site\lib;


##</code><code>##

tie %Config, 'Config', {
    archlibexp => 'C:\\usr\\lib',
    archname => 'MSWin32-x86-multi-thread',
    cc => 'gcc',
    d_readlink => undef,
    d_symlink => undef,
    dlsrc => 'dl_win32.xs',
    dont_use_nlink => undef,
    exe_ext => '.exe',
    inc_version_list => '',
    intsize => '4',
    ldlibpthname => '',
    libpth => 'C:\\strawberry\\c\\lib',
    osname => 'MSWin32',
    osvers => '5.1',
    path_sep => ';',
    privlibexp => 'C:\\usr\\lib',
    scriptdir => 'C:\\usr\\bin',
    sitearchexp => 'C:\\usr\\site\\lib',
    sitelibexp => 'C:\\usr\\site\\lib',
    useithreads => 'define',
    usevendorprefix => undef,
    version => '5.10.0',
};