Please can we have a bit more detail.. preferably a code snippet.

Are you using EXPORT, EXPORT_OK or EXPORT_TAGS in your module?

By PerlHandler you are not talking about PerlTransHandler are you cause they are far more fun ;)

Some times it is a good idea to alter the startup.pl script to include :-

use lib qw(/path/to/module/library);
[download]

This is grate when running different apache daemons on the same server with different versions of the same modules.

Hope this helpful
UnderMine