OPENFILES /parameter [arguments]

Description:
Enables an administrator to list or disconnect files and folders
that have been opened on a system.

Parameter List:
/Disconnect Disconnects one or more open files.

/Query Displays files opened locally or from shared
folders.

/Local Enables / Disables the display of local open files.

/? Displays this help message.

Examples:
OPENFILES /Disconnect /?
OPENFILES /Query /?
OPENFILES /Local /?


As for the replacement KiXtart 4.52 Beta 2 supports this. The UDF by Jens does not properly support it.
 

Changes in 4.52 Beta 2:

CompareFileTimes has been enhanced so it can operate on open files.
RD further enhanced such that it continues deleting files & folders, even if an error occurs.
Fixed the handling of F10, F11, F12, etc keys by SendKeys.
Added a '/p' (Postpone) option to MOVE and DEL to enable you to postpone the actions until the next reboot. This can be useful to replace files that are normally in use.