It's easy to test this yourself:

>perl -e "use Some::Bogus::Package;"
Can't locate Some/Bogus/Package.pm in @INC (@INC contains: C:/Perl561/
+Perl/lib C:/Perl561/Perl/site/lib .)

BEGIN failed--compilation aborted at -e line 1.
[download]

>perl -e "require Some::Bogus::Package;"
Can't locate Some/Bogus/Package.pm in @INC (@INC contains: C:/Perl561/
+Perl/lib C:/Perl561/Perl/site/lib .)
[download]