For security reasons, StealthMail Add-in does not allow emails with attachments of following file types.



Executable program files. Most programs on Windows have this extension.


A special file containing information for DOS programs. Despite the fact that they do not contain executable code, they can be potentially dangerous.


Starts the process of installing the program on your computer.


Install updates for already installed programs.


Programs for MS-DOS.


File screensaver.


HTML applications are executable in your browser and can be dangerous.


The Control Panel file. All items in the control panel have this extension.


Microsoft Management Console files. Applications such as the Group Policy Editor and the Disk Management tool have the * .MSC extension.


Executable code for the Java environment.


An application installer that uses Microsoft's ClickOnce technology.


Gadget for display on the desktop in Windows Vista and 7.



A batch file containing a sequence of commands for your computer. Originally used in MS-DOS.


A batch file like * .BAT, but this file extension was executed in Windows NT

*.VB, *.VBS, *.VBE

The VBScript file. It will execute its VBScript at startup.

*.JS, *.JSE

JavaScript file. When used on web pages it is relatively safe - if you work in a web browser. However, Windows can open these files outside the browser, which is a threat.

*.WS, *.WSF, *.WSC, *.WSH

Windows Script files.

*.PS1, *.PS1XML, *.PS2, *.PS2XML, *.PSC1, *.PSC2

Command script for Windows PowerShell.


Command script for Monad. Monad was later renamed PowerShell



The Windows Explorer command file. Can contain potentially dangerous commands.


Link to start the program. It can contain command-line attributes that can do dangerous things, such as deleting files without the User’s permission.


A text file used to automatically start from the connected media. It is often used to infect computers from a flash drive or a disk.

The rest


The Windows registry file. These files contain a list of registry entries that will be added or deleted if you run them. The danger is that you can delete sensitive information from the registry or add unwanted or malicious data to it.


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