pushd is a shell command, it does not exist in Perl (although there may be a module which does it).
@INC is a Perl variable, it does not exist in the shell. You cannot mix the two.

If you wish to use a module from the user's home directory which, considering your use of a bare `cd`, is what you are trying to do, then:

use lib $ENV{'HOME'};
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Update: Hangon! The title of this question is Win32::Daemon. My comments still apply (for 'shell' read 'cmd.exe') except that the HOME environment variable probably will not exist.