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I'm seeing a "405.0 Method Not Allowed" error when trying to install MIDAS

If, when attempting to install our web based room and resource scheduling software on a IIS server, you see a "HTTP Error 405.0 - Method Not Allowed" error after confirming the License Agreement, along with the message "The page you are looking for cannot be displayed because an invalid method (HTTP verb) is being used", then there is a problem with your server configuration.

Specifically, your sever has been set to reject POST requests to non-asp pages (MIDAS doesn't use or require asp (Active Server Pages)). MIDAS utilizes .pl (Perl) scripts, and this error indicates that your IIS is in fact not actually configured to handle *.pl files for the POST method.

Configuring your server/Perl mappings to permit the POST verb to .pl files should resolve this issue and allow you to install your MIDAS system.

  1. In your Internet Information Services (IIS) Manager, select "Handler Mappings", and scroll down to the entry for *.pl files.
  2. Double click this entry and an "Edit Script Map" window will appear.
  3. Click the "Request Restrictions" button in this window, then on the "Verb" tab of the resulting window, make sure "Specify the verbs to be handled" is set to "All Verbs"
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