Reloading Apache::Registry modules without restarting Apache

I'm using mod_perl on Windows 7, and am trying to set things up so that I can reload my script and all the modules it uses, without having to restart Apache.

The problem is that my script (called webitext.cgi) updates the @INC variable using statements like these:

---
use lib "$ENV{WEBITEXT_HOME}";
use lib "$ENV{WEBITEXT_HOME}/bin";
etc...
---

where the value of $ENV{WEBITEXT_HOME} is set differently depending on the virtual host it's running on. I use this so I can have two versions of my app on the server, a production and a test version, each running under a different vhost which defines the env variable differently (using Apache SetEnv).

The problem is that when Apache::Reload tries to reload the modules, it does not find them, because it seems to use the value of @INC as it was BEFORE the script was run (i.e. not including the ones added with the 'use lib' statements).

This problem occurs whether I use the 'PerlSetVar ReloadTouchFile' approach or the Apache::StatINC approach. It seems to be a well documented limitation of Apache::Reload.

So... I thought about setting the @INC path outside of the script. But I need to do this on a per-vhost basis. According to this page:

http://perl.apache.org/docs/2.0/user/config/config.html#Modifying_C__INC__on_a_Per_VirtualHost

I should be able to do this with something like this:

---
<VirtualHost ...>
      ServerName webitextprod
      PerlOptions +Parent
      PerlSwitches -Idir1 -Idir2 etc...
  </VirtualHost>
---

But when I tried this and ran httpd.exe -t -c httpd.conf, it crashed with the dreaded "free to wrong pool" error:

---
Free to wrong pool 2b60100 not 3d4f10.
---

This error seems to be caused by the PerlOptions +Parent line.

Any suggestion for how to fix or get around this problem would be greatly appreciated.

Thx.

Alain Désilets