1. Do a search for the ST2SEPref.txt. file.
2. Double click on it so it opens in your Text editor.
3. Copy and Paste the information provided below:

BrowseDown=-1
BrowseLoad=-1
BrowseUp=-1
Color=255
FirstRun=no
FlatVelocity=100
GlobalSync=0
InstrumentPath=
Luminosity=124
Mode=0
RegID=ENTER YOUR AUTHORIZATION CODE HERE
Reload=1
RtasOutputs=4
SafeMode=0
Saturation=255
Serial=ENTER YOUR SERIAL NUMBER HERE

4. In RegID=, paste/type your Authorization Code.
5. In Serial= paste/type your Serial number
6. Resave the ST2SEPref.txt file.

Now, when you open SampleTank 2 SE again it should not ask you for the
Authorization Code.