BT3 file format description

Many people share .bt3 files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .bt3 file can be edited, converted or printed with. On this page, we try to provide assistance for handling .bt3 files.

1 filename extension(s) found in our database.

.bt3 - MomSoft Control Runner Button Configuration

The BT3 configuration files are related to Control Runner. The BT3 file is a MomSoft Control Runner Button Configuration. Control Runner is a program launcher and manager for Microsoft Windows.

Control Runner
Configuration files
- / -
MomSoft Control Runner Button Configuration related extensions:
Borland Turbo Configuration
MX Editor Device Configuration Data
Proxomitron Configuration Data
Novell GroupWise Binary Information File
TaskMerlin Database Image Data
GFI FAXmaker Device Configuration

Naturally, other applications may also use the .bt3 file extension. Even harmful programs can create .bt3 files. Be especially cautious with .bt3 files coming from an unknown source!

Can't open a .bt3 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 .bt3 file extension is often given incorrectly!

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

b3, bh3, br3, bt, bte, btr, btw, ft3, ht3, nt3, t3, tb3, vt3

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

BTEWin Script
Btrieve Database
BMW iDrive Multimedia Data
Bartender Format Data
VTBuilder Terrain Data
Hypertext Markup Language Document

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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If you have useful information about the .bt3 file format, then write to us! >> BT3 file