Windows
Compatible applications
Quick Facts
Basic information about this file format
Extension
.ACTIVEX
File Type
ActiveX Control
Category
Executable
Best first step
Use compatible software
Quick Summary
A practical overview of the .activex file format
ActiveX controls are small programs, also known as add-ons, that are used on the Internet to provide interactive content for web pages. They are based on Microsoft's Component Object Model (COM) technology and are primarily used in the Windows operating system. ActiveX controls can perform a wide r…
File extension
.ACTIVEX
File type
ActiveX Control
Category
Executable
Recommended action
Open with a trusted compatible app
How to open a .activex file
Start with a trusted app that supports this format
- Check the file extension carefully and confirm that the file name really ends with .activex.
- Use software that supports this file type. If one app does not work, try another compatible program for the same platform.
- Update the application if the file was created by a newer version of the software.
- Scan files from unknown sources before opening them, especially documents, archives, scripts, installers, and executable files.
What is a .activex file?
File extension details and usage information
ActiveX controls are small programs, also known as add-ons, that are used on the Internet to provide interactive content for web pages. They are based on Microsoft's Component Object Model (COM) technology and are primarily used in the Windows operating system. ActiveX controls can perform a wide range of tasks, such as displaying animations, playing audio and video, providing interactive forms, and accessing system resources. They are often embedded within web pages and executed by web browsers like Internet Explorer (though support has largely been deprecated in modern browsers due to security concerns). Because ActiveX controls have access to the underlying operating system, they can pose a security risk if they are not properly designed or if they come from untrusted sources. Malicious ActiveX controls can be used to install malware, steal data, or compromise the security of the user's system. Modern web development practices favor alternatives like JavaScript and HTML5 due to their cross-platform compatibility and improved security features.
Software Compatibility
Programs that may open or work with .activex files
macOS
Compatible applications
No specific software is listed for this platform yet. Try checking the file source, identifying the original application, or using a trusted universal file viewer when appropriate.
Linux
Compatible applications
No specific software is listed for this platform yet. Try checking the file source, identifying the original application, or using a trusted universal file viewer when appropriate.
Mobile
Mobile applications
No specific software is listed for this platform yet. Try checking the file source, identifying the original application, or using a trusted universal file viewer when appropriate.
Can .activex files be converted?
Options for saving or exporting this file to another format
In many cases, a .activex file can be converted by opening it in compatible software and using an option such as Save As, Export, or Convert. The available output formats depend on the file type and the application used.
- Use the original software that created the file when possible.
- Check whether the application supports exporting to common formats.
- Be careful with online converters when working with private, business, or sensitive files.
- If conversion fails, the file may be corrupted, incomplete, encrypted, or not actually a .activex file.
Why can't I open a .activex file?
Common reasons this file type may not open correctly
Wrong software
The file may require a specific program that supports the .activex format.
Incorrect extension
The file extension may have been renamed manually, even though the actual file format is different.
Corrupted file
The file may be incomplete, damaged during download, or transferred incorrectly.
Outdated app
Your software may need to be updated before it can open newer versions of this file format.
Frequently Asked Questions
Common questions about .activex files
To open a .activex file, use software that supports this file format.
- Internet Explorer (Legacy)
- Microsoft Visual Studio
- ActiveX Control Test Container
Open the file in compatible software and look for options such as Save As, Export, or Convert. If no export option is available, the file may require a specialized converter or the original application that created it.
- Verify that the file extension is correct.
- Install or update compatible software.
- Try another application that supports this format.
- Check whether the file is corrupted, incomplete, or encrypted.
A file extension alone does not guarantee whether a file is safe or unsafe. Only open files from trusted sources, scan unknown files before opening them, and be especially careful with executable, script, archive, and document files.
File safety tips
Use caution with unknown files
Only open files from trusted sources. Before opening a .activex file, scan it with antivirus software, verify that the file extension is expected, and avoid running unknown executable, installer, macro-enabled document, or script files.