The version 2.4.3 is part of a series of tools (often attributed to "CODYQX4" or "-=[By M. Baran]=-") designed to manage licensing and activation:
He ran Toolkit 2.4.3 on her machine. Then on the pharmacy’s POS terminal. Then on the library’s donation computer. microsoft toolkit 2.4.3
Beside it, his copy of Office 2010 refused to let him save his latest pitch, its ribbon bar frozen in a stubborn shade of "unlicensed" red. The version 2