This tool assists organizations in determining the appropriate number of licenses required for Windows Server 2022 deployments. It factors in elements such as the number of physical cores in the server, the number of virtual machines (VMs) being run, and the licensing model chosen (core-based or server + CAL). For instance, if a physical server has 32 cores and runs two VMs, the result of the license calculation will specify the necessary number of core licenses for compliance.
Accurate license calculations are critical for legal compliance and cost optimization. Under-licensing can result in substantial fines and service disruptions, while over-licensing leads to unnecessary expenditure. Historically, the transition from per-processor licensing to core-based licensing necessitated these specialized tools to navigate the complexities of ensuring adequate coverage across diverse server environments. Proper licensing ensures access to updates, security patches, and support, maintaining the stability and security of the server infrastructure.