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While principally only limited by the size of the environment segment, some DOS and 16-bit Windows programs [10] [nb 1] do not expect the contents of environment variables to exceed 128 characters. DR-DOS COMMAND.COM supports environment variables up to 255, 4DOS even up to 512 characters. [ 10 ]
The command produces summary output of hardware/software operating environment parameters. [2] The detailed configuration information about the computer and its operating system includes data on the operating system configuration, security information, product ID, and hardware properties, such as RAM , disk space , and network cards .
[1] [2] It has been bundled with Windows since Windows NT 4.0. It compiles technical information on the overall system, hardware resources (including memory, I/O, etc.), physical hardware components (CD-ROM, sound, network, etc.), and the Windows environment as well (drivers, environment variables, services, etc.).
Under Windows, which also supports lowercase environment variable names, the variable name is defined as ComSpec in the environment block, but as COMSPEC inside the DOS emulator NTVDM. When not present in the environment block, the command processor CMD.EXE of Windows NT sets COMSPEC to its own full path; it evaluates COMSPEC for example to ...
Pages in category "Windows environment variables" The following 18 pages are in this category, out of 18 total. ... Mobile view ...
On DOS, OS/2, and Windows operating systems, the %PATH% variable is specified as a list of one or more directory names separated by semicolon (;) characters. [5]The Windows system directory (typically C:\WINDOWS\system32) is typically the first directory in the path, followed by many (but not all) of the directories for installed software packages.
command.com running in a Windows console on Windows 95 (MS-DOS Prompt) COMMAND.COM is the default command-line interpreter for MS-DOS, Windows 95, Windows 98 and Windows Me. In the case of DOS, it is the default user interface as well. It has an additional role as the usual first program run after boot (init process).
Windows environment variables (18 P) Pages in category "Environment variables" The following 6 pages are in this category, out of 6 total. ... Mobile view ...