I create a maintenance form on almost every process so I can change the Starting Form in the Message Start Event if I don't want end users to complete it during a time that I might be making updates or I'm about to turn of the routing service, etc.  

@████████has a great suggestion as well, but you would have to set it up on each form.  

At a district I was at a few years ago, I would redirect the URL in IIS.  It's been a while, but I pulled these directions from Copilot and it looks correct.  I haven't tested it here; we have an auto redirect for all of our sites if a system is offline.  I think this should get you what you need.  

To create a redirect for a web address in IIS for Laserfiche Forms (self-hosted), you can follow these steps:

1. Open IIS Manager:

   • Press Windows + R, type inetmgr, and press Enter.

2. Select Your Site:

   • In the left-hand Connections pane, expand your server’s node and then expand the Sites node.
   • Click on the site where Laserfiche Forms is hosted.

3. Add a Redirect Rule:

   • In the middle pane, double-click on the URL Rewrite feature.
   • In the Actions pane on the right, click on Add Rule(s)....
   • Select Blank rule and click OK.

4. Configure the Rule:

   • Name: Give your rule a name (e.g., RedirectToHttps).
   • Requested URL: Choose Matches the Pattern.
   • Using: Select Regular Expressions.
   • Pattern: Enter (.*) to match all URLs.

5. Set the Redirect Conditions:

   • Click on Add... under the Conditions section.
   • Condition input: Select {HTTPS} from the dropdown.
   • Check if input string: Select Matches the Pattern.
   • Pattern: Enter ^OFF$ to match non-HTTPS requests.
   • Click OK.

6. Set the Redirect Action:

   • In the Action section, set the following:
     • Action type: Select Redirect.
     • Redirect URL: Enter https://{HTTP_HOST}/{R:1}.
     • Append query string: Select Yes.
     • Redirect type: Choose Permanent (301).

7. Apply the Rule:

   • Click Apply in the Actions pane on the right.

8. Test the Redirect:

   • Open a web browser and navigate to the HTTP version of your Laserfiche Forms URL to ensure it redirects to HTTPS.

If you are wanting to make it so no one submits any forms and no one can access Forms, you could add a maintenance.html file with a maintenance message and put it in the root of the Forms site. Then in IIS for the site under Default Document, add maintenance.html and move it to the top of the list. When you're done, remove it from the list or just disable it.