Enables or disables flat temporary folders.


flattemp {/query | /enable | /disable}


/query   : Queries the current setting.

/enable   : Enables flat temporary directories.

/disable   : Disables flat temporary directories.

/?   : Displays help at the command prompt.


  • Once each user has a unique temporary directory, use flattemp /enable to enable flat temporary directories.

  • The default method for creating temporary folders for multiple users (usually pointed to by the TEMP and TMP environment variables) is to create subfolders in the \Temp folder, using the logonID as the subfolder name. For example, if the TEMP environment variable points to C:\Temp, the temporary folder assigned to the user logonID 4 is C:\Temp\4. Using flattemp, you can point directly to the \Temp folder and prevent subfolders from forming. This is useful when you want the user temporary folders to be contained in home directories, whether on a Terminal server local drive or on a network share drive. You should use this command only when each user has a separate temporary folder. For instructions on using temporary folders per session, see To use separate temporary folders for each session 

  • You must have administrative privileges to run flattemp.

  • You might encounter application errors if the user's temporary directory is on a network drive. This occurs when the network share becomes momentarily inaccessible on the network. Because the temporary files of the application are either inaccessible or out of synchronization, it responds as if the disk has stopped. Moving the temporary directory to a network drive is not recommended. The default is to keep temporary directories on the local hard disk. If you experience unexpected behavior or disk-corruption errors with certain applications, stabilize your network or move the temporary directories back to the local hard disk.

  • Flattemp settings are ignored if you disable using separate temporary folders per-session. This option is set in Terminal Services Configuration.

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