Hi

When I requested for an update of my studio license to ver 4.5, I also received a pre-activated license, probably because their web-activation site is not working for the new license format).
In case its helps, here is my related post in this group since Oct16:
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Studio-XPA4.5 requires a new license compared to previous 4.X versions, and the new license file has different format compared to the one that is being used for the last two decades.
Also, It seems that there is an issue with the license-checking mechanism of Studio-XPA4.5 which was not present in previous 4.X versions. 
For example,  the following studio environment setting reports an "Invalid License" error,  even if the correct license.dat file was in place and and the alternate license-server was down:
       LicenseFile = C:\FlexLM\license.dat;D:\Magic xpa x.x\License.dat;744@SERVERNAME
..while this worked:
       LicenseFile = C:\FlexLM\license.dat
In conclusion: specifying an alternate license path in the environment settings, messes up with the license-check (Studio-XPA version 4.5.a, Windows version 7 & 10 )
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BTW, I have informed MSE about the problem, but I have no response so far.

Regards
Avgerinos