Apparatus, systems, and methods may operate to receive reports at a server node, the reports indicating a change in virtual machine status for virtual machines hosted on a virtual machine host node; and to allocate/de-allocate software licenses to the virtual machines based on the change in virtual machine status. In some embodiments, operations may include detecting, at a virtual machine host node, a change in virtual machine status for virtual machines hosted on the host node; and transmitting reports to a server node from the host node. The reports can be used to indicate the change in virtual machine status, enabling the server node to allocate/de-allocate software licenses to the virtual machines based on the change in virtual machine status. Additional apparatus, systems, and methods are disclosed.