cpan> i /Win32::SocketPair/
Module id = Win32::Socketpair
    CPAN_USERID  SALVA (Salvador Fandino Garcia <salva@cpan.org>)
    CPAN_VERSION 0.01
    CPAN_FILE    S/SA/SALVA/Win32-Socketpair-0.01.tar.gz
    INST_FILE    (not installed)


cpan> install Win32::SocketPair
Warning: Cannot install Win32::SocketPair, don't know what it is.
Try the command

    i /Win32::SocketPair/

to find objects with matching identifiers.