ClickOnce is a component of Framework and later, and supports deploying applications made with Windows Forms or Windows Presentation. An APPLICATION file is a ClickOnce Deployment Manifest file. Learn how to open ATION file or convert an APPLICATION file to a. This really depends on the installed ClickOnce software, but the short finding the executable and associating it with the file type may still fail.

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My goal is to learn what information must be added to the registry programmatically to manually associate files c,ickonce a ClickOnce deployed application. ClickOnce applications can be associated with one or more file name extensions, so that the application will be started automatically when the user opens a file of those types.

They can check for newer versions as they become available and automatically replace any updated files. In order to launch a ClickOnce application, a user clicks on its deployment manifest file. RLH 2, 12 33 To make the file reference work you first clicjonce a ProgID for your application. You could also benefit from using an application like ProcessExplorer to see specifically what is being set during a ClickOnce install.

MarkdownPad should associate itself with. Publish a ClickOnce application using the Publish Wizard.

.deploy file extension :: all about the .deploy file type

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Each ClickOnce application is isolated from the others. ClickOnce-deployed applications are considered “low impact”, in that they are installed per user, not per machine.

However, if you want to try, you can search for the executable in one of the following directories. If you are developing for a wider range of users, in different environments, then you need to develop your application with the assumption that you are running in a limited sandbox.


I manage a very robust application that I publish through C1 because I need to have the ability to force updates to my user’s. Files with the Build Action property set to Content are designated as application files and will be marked as included by default.

Capture Events when you install your app using ClickOnce with default file associations.

APPLICATION File Extension – What is an .application file and how do I open it?

I have two motivations for accomplishing this: The developer, Evan Wondraseksays that by default: I’ve done some digging through my registry and have identified several entries made by the ClickOnce installer to associate filetypes with the ClickOnce deployed application.

Any help is appreciated! This means one ClickOnce application is not able to “break” another. ClickOnce applications cannot be installed from a password-protected web directory. TestApp with the following strings: Views Read Edit View history.

If Copy Local is Falseit is marked by default as a prerequisite assembly Prerequisite Auto that must be present in the GAC before the application is installed. In the Application Files dialog box, select the application assembly. The default publish status value of a file is tagged with Auto. Take a look at this question: If the software makers didn’t integrate this type of functionality into the application as a setting, finding the executable and associating it with the file type may still fail because they probably didn’t design their application to start with a file passed in as a “file open” parameter.

Something like “assoc” will work on XP, 7, and probably Win 8 althought i haven’t used this cmd on win 8 yet. Kind of like an Adobe AIR app but more like a native windows app.

Lastly we need to link the previous keys with the file associations we desire. By installing the application in the user’s directory, the application can be installed without clickince admin rights and the automatic updating system can work without having any awful security issues.


Visual Studio provides the capabilities to exclude files, mark files as data files or prerequisites, and create groups of files for conditional installation. They are only restricted by the user’s rights. Product feedback Sign in to give documentation feedback.

How to: Create file associations for a ClickOnce application

An icon to use for this file type. In the Publish Status field, select Prerequisite from the drop-down list. The ClickOnce model supports both installed applications akin to conventional Windows applications with Start Menu integration and online applications fkletype applications that are not installed, only run and cached.

For more information, see ClickOnce application manifest. In some clickonde, you may not want or need to publish certain files, or you may want to install certain files based on conditions.

Is there any limitations of a clickOnce app over other installed apps other then described above? To my knowledge this can be whatever you want, or whatever you would normally set it to in the ClickOnce publishing menu in Visual Studio.

As a child of the assembly element, add a fileAssociation element. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie cliconceand that your continued use of the website is subject to these policies.

In the Publish Status field, select Exclude from the drop-down list. Vishalgiri 1 3 There’s a bit of give and take for a dev, depending on which installation method they dlickonce. However, it doesn’t work that way because the philosophy behind ClickOnce is a bit difference.