I'm pretty sure it's still possible to build x64 (people have done it in the past.) Not sure if I've heard any updates since win 10, though.
I don't know if the login server is x64 buildable..someone else may know.
Also, not quite sure why you would want to compile x64 as the current binary memory requirements are nowhere near 4GB and 8-byte pointers would only increase that footprint.
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Uleat of Bertoxxulous
Compilin' Dirty
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