ASCX file format description
Many people share .ascx files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .ascx file can be edited, converted or printed with. On this page, we try to provide assistance for handling .ascx files.
1 filename extension(s) found in our database.
.ascx - ASP.NET User Controls
ASCX file is an ASP.NET User Controls. ASCX are containers into which you can put markup and Web server controls. ASP.NET was first released in January 2002 with version 1.0 of the .NET Framework, and is the successor to Microsoft's Active Server Pages (ASP) technology. (ASP is the server-side execution environment in Microsoft Internet Information Server that enables you to run scripts on the server.)
- .ascx file format description:
- ASCX format
- Visual Studio - Visual Web Developer
- Development files
- - / -
- ASP.NET User Controls related links:
- ASP.NET User Controls related extensions:
Naturally, other applications may also use the .ascx file extension. Even harmful programs can create .ascx files. Be especially cautious with .ascx files coming from an unknown source!
Can't open a .ascx 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.
- Open Control Panel > Control Panel Home > Default Programs > Set Associations.
- Select a file type in the list and click Change Program.
The .ascx file extension is often given incorrectly!
According to the searches on our site, these misspellings were the most common in the past year:
acx, scx, asvx, asc, asx, ascs
Is it possible that the filename extension is misspelled?
Similar file extensions in our database:
- Atari ST Executable
- StarCraft: Brood War Map
- ASCII Armored GPG/PGP File
- Microsoft Visual FoxPro Form
- Autodesk 3D Studio Scene in ASCII
- Plain Text File
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