Tektronix K1297-G20 - Manual (Page 61)

Getting Started
K1297-G20 Monitor User Manual 49
Installation of a New Software Version
Software products from different product CDs are NOT designed to be
mixed. The Setup program has a security mechanism that will ensure that
such version mixes cannot be installed.
If you install a new software version on top of an existing software
version, the existing version will be automatically removed.
If you want to install software products from different CD versions in
parallel on one Protocol Tester, first perform a complete backup of the
existing software.