Opening BT3 Files

The BT3 file type is primarily associated with Control Runner.

BT3	File extension: BT3
	File type:	Button Configuration File

What is a BT3 file?

BT3 files mostly belong to Control Runner by MomSoft. Control Runner is a program launcher for all windows platforms. The .BT3 file Holds the configuration information of program buttons.

How to open a BT3 file

You need a suitable software like Control Runner to open a BT3 file. You need a suitable software like Control Runner from MomSoft to open a BT3 file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your BT3 file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a BT3 file directly in the browser:. Just drag the file onto this browser window and drop it.

Online BT3 Text Viewer

Choose your .bt3 file to analyze

or drag and drop it here

Online File Viewer

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.BT3 File Not Opening? How to Fix It:

Because .BT3 files can originate from different programs, they aren't universally openable.

Identify the Source: If received while customizing desktop toolbars, it likely belongs to MomSoft Control Runner. If from a developer, it may be a proprietary data file.
Check the Header: Open the file in a text editor or hex viewer to inspect the first bytes:
- Plain text or XML suggests a readable configuration file.
- Unreadable characters or specific magic bytes indicate a compiled binary format.
Use the Original Software: Opening it usually requires the original program, such as MomSoft Control Runner or Notepad; if uncertain, ask the sender.
Use this Webpage: Drag and drop your file into our viewer to detect its format, extract readable text or metadata, and preview its contents when possible.

Technical Data for BT3 File Extension

Related files:

ypf, cnf, tls, bt2

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: ProFile.T3.1999.Backup
EXEFile: %ProgramFiles%\Profile\profile.exe %1

a bt3 Button Configuration File is a special file format by MomSoft and should only be edited and saved with the appropriate software.

How to solve problems with BT3 files

Associate the BT3 file extension with the correct application.
Update your software that should actually open button configuration files. Because only the current version supports the latest BT3 file format. Search, therefore, e.g. on the MomSoft manufacturer website after an available Control Runner update.
To make sure that your BT3 file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .BT3 file online - secure, fast, and no downloads needed.