.file extension COM - Binary file
File extension COM description:
A MIME attachment with the content type "application/octet-stream" is a binary file. Typically, it will be an application or a document that must be opened in an application, such as a spreadsheet or word processor. If the attachment has a filename extension associated with it, you may be able to tell what kind of file it is. A .exe extension, for example, indicates it is a Windows or DOS program (executable), while a file ending in .doc is probably meant to be opened in Microsoft Word.
No matter what kind of file it is, an application/octet-stream attachment is rarely viewable in an email, Usenet, or World Wide Web client. If you are using a text-based client, such as Pine, trn, or Lynx, save the attachment to your account, then transfer it to your personal computer using SFTP. IU Webmail allows you to save attachments directly to your personal computer; see In IU Webmail, how do I use attachments? If you are using a workstation-based client, such as Thunderbird or Outlook, the application should be able to extract and download the attachment automatically. After downloading an attachment through any of these methods, you must then open the attachment in the appropriate application to view its contents.
Note: Before opening attachments, even from trusted senders, you should follow the guidelines listed in Best practices for computer security.
In addition to the generic application/octet-stream content type, you may also encounter attachments that have different sub-types (e.g., application/postscript, application/x-macbinary, and application-msword). They are similar to application/octet-stream, but apply to specific kinds of files.
Mime: application/octet-stream
Associated applications to file extension COM:
Company / developer:
Microsoft Corporation
MS-DOS (short for Microsoft Disk Operating System) is an operating system commercialized by Microsoft. It was the most commonly used member of the DOS family of operating systems and was the dominant operating system for computers during the 1980s. It was based on the Intel 8086 family of microprocessors, particularly the IBM PC and compatibles. It was gradually replaced on consumer desktop computers by operating systems offering a graphical user interface (GUI), in particular by various generations of the Microsoft Windows operating system. It was originally known as QDOS (Quick and Dirty Operating System) and 86-DOS.
MS-DOS was originally released in 1981 and had eight major versions released before Microsoft stopped development in 2000. It was the key product in Microsoft's growth from a programming languages company to a diverse software development firm, providing the company with essential revenue and marketing resources. It was also the underlying basic operating system on which early versions of Windows ran as a GUI.
Company / developer: Microsoft Corporation
Microsoft Windows
Microsoft Windows is a family of operating systems by Microsoft. They can run on several types of platforms such as servers, embedded devices and, most typically, on personal computers. Microsoft first introduced an operating environment named Windows in November 1985 as an add-on to MS-DOS in response to the growing trend of graphical user interfaces (GUI) popularized by the Macintosh. Microsoft Windows eventually came to dominate the world's personal computer market.