Using Office 2010 Toolkit 2.2.3 goes beyond being a simple violation of Microsoft's End-User License Agreement (EULA); it is an act of software piracy and is illegal.
Despite its widespread use, the Office 2010 Toolkit carries serious risks that cannot be overlooked. Office 2010 Toolkit 2.2.3
Tools to install or remove product keys and convert retail licenses to volume licenses. Backup & Restore: Using Office 2010 Toolkit 2
: Its primary purpose is to convert Office 2010 Retail versions to Volume License (VL) and perform local KMS activation. It also includes tools for backing up license information. Office 2010 Toolkit 2.2.3