This is the most critical step. For a legitimate copy of the PS-300B software (version 1.0 or newer), your unique Key ID and password can be found on a sticker . Look for a small, often white or silver sticker with two sets of codes clearly labeled.
When running older versions (Ver. 1.0 to 2.01) on updated operating systems, exiting without saving can throw an unreadable or English-only error dialog box. ps300b key id password top