| ALLUSERSPROFILE | Returns the location of the All Users Profile |
| APPDATA | Returns the location where applications store data by default |
| CD | Returns the current directory string |
| CMDCMDLINE | Returns the exact command line used to start the current cmd.exe |
| CMDEXTVERSION | Returns the version number of the current Command Processor Extensions |
| COMMONPROGRAMFILES | Returns the path to the Common Files directory |
| COMMONPROGRAMFILES(x86) | Returns the path to the Common Files (x86) directory on 64-bit systems |
| COMPUTERNAME | Returns the name of the computer |
| COMSPEC | Returns the exact path to the command shell executable |
| DATE | Returns the current date. This variable uses the same format as the date /t command |
| ERRORLEVEL | Returns the error code of the most recently used command. A non-0 value usually indicates an error |
| HOMEDRIVE | Returns which local workstation drive letter is connected to the user's home directory |
| HOMEPATH | Returns the path of the user's home directory without the drive letter |
| LOGONSEVER | Returns the name of the domain controller that validated the current logon session |
| NUMBER_OF_PROCESSORS | Returns the number of processors installed on the computer |
| OS | Returns the OS name. Windows 2000, XP and Vista return Windows_NT |
| PATH | Returns the search path for executable files |
| PATHEXT | Returns a list of the file extensions that the OS considers to be executable |
| PROCESSOR_ARCHITECTURE | Returns the processor's chip architecture. Values: x86, IA64 |
| PROGRAMFILES | Returns the path to the Program Files directory |
| PROGRAMFILES(x86) | Returns the path to the Program Files (x86) directory on 64-bit systems |
| PROMPT | Returns the command-prompt settings for the current interpreter |
| RANDOM | Returns a random decimal number between 0 and 32767 |
| SYSTEMDRIVE | Returns the drive containing the Windows root directory (i.e. C:) |
| SYSTEMROOT | Returns the location of the Windows root directory (i.e. C:\Windows) |
| TEMP or TMP | Returns the default temporary directories for applications that are available to users who are currently logged on |
| TIME | Returns the current time. This variable uses the same format as the time /t command |
| USERDOMAIN | Returns the name of the domain that contains the user's account |
| USERNAME | Local returns the name of the user currently logged on |
| USERPROFILE | Local returns the location of the profile for the current user |
| WINDIR | System returns the location of the OS directory |