Location:

    * XP: C:\Documents and Settings\%USERNAME%\Application Data\TeraCopy\
    * Vista: C:\Users\%USERNAME%\AppData\Roaming\TeraCopy


Options.ini
[Main]
OnTop=1
    1: Set window always on top.
CheckFreeSpace=1
    1: Check free space on target drive.
DeleteIncompleteFiles=N
    Ask to delete incomplete files only if copy took longer then N seconds. Set to 0 to never delete incomplete files.
MaxPathLimit=1
    0: Allow to create extra long paths (> 255 characters).
TestAlways=0
    1: Run CRC test automatically after each transfer.
NoClose=0
    0: Close window after successful file transfer.
EnableSound=0
    1: Play sound when transfer is complete.
SoundAfter=10
    Minimum length in seconds of transfer to play sound
RetriesMax=5
    Number of retries for reading files.
ButtonTimer=60
    Inactivity period in seconds to auto close File Exists dialog and set Skip All mode.
ShutdownApp=shutdown -s -c "Run shutdown -a to abort" -t 300
    Path to application used to turn computer off.

Quelle: http://help.codesector.com/TeraCopyConfiguration