I don't think you'd even need a module to do this. You can get a list of currently used modules by doing:
Originally posted to http://drupal.org/node/1017416:I have a list of 60+ modules that I download, via drush, to each new Drupal site that I build. I then enable whatever modules are needed for the specific site I'm working on as I carry out the build.This means that once the site is launched, there may be modules that are not being called by Drupal core but that are still enabled and/or installed.Is there an automated way - a specific module, for example - that will tell me which of the modules that are enabled on a site are being called by Drupal core?Secondly, is there any performance implication for having lots of modules installed on a site if they are not enabled?The answer to the second question seems to be "no". And It doesn't seem that such a module does exist - would it be technically possible to write this module for D6?
--Jim
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