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>> APPREF-MS file

APPREF-MS file format description

Many people share .appref-ms files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .appref-ms file can be edited, converted or printed with. On this page, we try to provide assistance for handling .appref-ms files.

1 filename extension(s) found in our database.

.appref-ms - Microsoft ClickOnce Application Reference

APPREF-MS file is a Microsoft ClickOnce Application Reference. ClickOnce is a Microsoft technology that enables the user to install and run a Windows-based smart client application by clicking a link in a web page.

.appref-ms file format description:
APPREF-MS format
Internet Explorer
Configuration files
- / -
Microsoft ClickOnce Application Reference related links:
Microsoft ClickOnce Application Reference related extensions:
Atom Syndication Format File
Cascading Style Sheets
Microsoft RSS Feed Store
HTML Component
Hypertext Markup Language Document
Internet Explorer Converter

Naturally, other applications may also use the .appref-ms file extension. Even harmful programs can create .appref-ms files. Be especially cautious with .appref-ms files coming from an unknown source!

Can't open a .appref-ms file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .appref-ms file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:


If you find the information on this page useful, please feel free to link to this page.

If you have useful information about the .appref-ms file format, then write to us!