I am having an issue w/ a post install of Drupal 5.x. I created a sub directory per the documentation called modules under sites\all\ to put new modules in etc. i for some reason am getting this error message when attempting to active those new modules. For example:

warning: opendir(sites/all/modules/googleauth-5.x-1.0) [function.opendir]: failed to open dir: No error in C:\Inetpub\wwwroot\drupal.mwcs.biz\includes\file.inc on line 641.

I checked permissions and played with the internet user guest account and cannot seem to get it to work. Thoughts anyone?
Running with Win2k3 IIS6.0 PHP5.x. Everything else seems to work just fine, but not getting that to work for some reason.
-Adam