How do I apply my newly purchased vRangerPro DPP license?
Providing that you are using vRangerPro DPP 4.x, the license file simply needs to be imported into the running vRangerPro DPP installation. There is no need to re-install the vRangerPro DPP application.
Copy the license file to a location that can be accessed by the vRangerPro DPP Server