Support infrastructure design teams with a license path that keeps Autodesk Infrastructure Design Suite 2013 Ultimate available on Windows PCs. This upgrade license is issued for 1 additional seat and delivered electronically, making it easier to add entitlement without waiting on physical media or manual fulfillment. The commercial structure is built for controlled purchasing: promotional pricing, government eligibility, and Autodesk Customer Engagement terms. That matters when you need to expand access for a specific user while keeping software spend tied to a defined deployment plan. The additional-seat model is especially useful when an existing environment needs one more licensed workstation without changing the broader software standard. For IT and procurement teams, this is a precise entitlement rather than a broad package. It helps preserve continuity for established Autodesk workflows, supports Windows-based PC deployments, and gives you a clean way to extend access where demand is already proven. In environments where software decisions are measured in uptime, compliance, and seat control, that precision carries real value.