Hi, I am using DNN 7

I want create 2 module from same desktopmodule module folder

 Like

Add a new folder to DesktopModules
Place two ascx controls in that new folder
Go to Host > Extentions and click the Create New Module button
Create a module from one of the controls.
Go back and create a module from the other control

but for second module i am getting error:

The module 'ModuleName' has already been registered in the system

I brought this up, and may have even opened a support ticket at one point. Won't be addressed is the response I received. I never make installs/manifests since 99% of my module development isn't intended for distribution. It would be great if you could do this, but I don't think its going to be a priority. BTW, you used to be able to do this in older versions of DNN. I think it may have stopped around DNN 6 or 7.

After you create your first module, you can create another manually from the same folder using the "Create New Extension" option under Host -> Extensions:

1.  Under "Select Extension Type", select Module.
2.  Add in whatever Name/Friendly Name/Description/Version you want, click "Next".
3.  Module Specific Details appears to be broken, but that is good in our case so it can't validate and tell us we can't do it.  Just click "Next".
4.  Fill in Owner/Organization/URL/Email with whatever, click "Next".
5.  This will drop you back at the main list, find your extension, click "Edit".
6.  Expand "Module Definitions", click "Add Definition".
7.  Re-Expand "Module Definitions", and Fill in what you want for Definition Name/Friendly Name/Cache Time, click "Create Definition"
8.  Re-Expand "Module Definitions" (Annoyed?), click "Add Module Control".
9.  Select your Source, and add any other details you need.  Click "Update".

I agree though, the "Create New Module" throwing an error the second time around seems like a bug.  I do it this way all the time so that all of our controls are in a single clean folder.  We only break things out when it is a large scale effort that it makes sense to have everything separate.