Hello, I'm building a Universal App for Windows (and Phone) 10 and as of Unity 5.3.x+ you can no longer change the "Any CPU" option of plugins. How am I supposed to do the following: I'm going to add the "Microsoft Ads" to my app and thus I am creating a plugin for it. According to Micrsofts documentation, I need to select either x86 or ARM when building because the library internally (or something) picks the correct classes to use. In other words, when I build my DLL I have to target either x86 or ARM, if I select "No CPU" when building, it will only cause errors (and is explained in the documentation as not possible). So, now I have two plugins named My-Plugin.dll (targeting x86) and another My-Plugin.dll (targeting ARM). But placing these inside Unity will cause a conflict and thus I tried changing the SDK of each plugin. So one of them uses "UWP" and the other uses "Phone SDK81" (which is wrong because I'm building for Windows Phone 10). The project compiles, but when trying to run it in the C# Project it will throw an error and say that I'm building for ARM but the dll being used is built for x86. If I was able to select which CPU to use this would probably not be an issue (not sure though). Any suggestions? @Tautvydas Zilys Thanks!