The File Extensions Database

.APPREF-MS File Extension

  • Developer by: Microsoft
  • Category: Settings Files
  • Format: Text

What is an .APPREF-MS file?

.APPREF-MS is Microsoft Application Reference File

Application reference file used by ClickOnce, a Microsoft platform used to deploy and run remote Web applications; contains a local or remote link to an application; commonly used to enable links from the Windows Start Menu.

APPREF-MS file and their corresponding .APPLICATION files are enabled by the Microsoft .NET framework. When an APPREF-MS file is activated from a Web hyperlink, ClickOnce can check for updates, make installations, and run a program.

Programs that open Microsoft Application Reference File
Microsoft Visual Studio 2017
Microsoft ClickOnce

How to solve problems with APPREF-MS files

  • Associate the APPREF-MS file extension with the correct application. On :
    Windows: Right click on any APPREF-MS file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.APPREF-MS files". Mac: Right click (or Ctrl-click) the APPREF-MS file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .APPREF-MS is Microsoft Application Reference File. Because only the current version supports the latest APPREF-MS file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available .APPREF-MS is Microsoft Application Reference File update.
  • To make sure that your APPREF-MS file is not corrupted or virus-infected, get the file again and scan it with antivirus software.