5 ms·Microsoft makes the source of Windows available to partners and big customers. Just not for free.by eli 9y agoMicrosoft makes the source of Windows available to partners and big customers. Just not for free.adrianN 9y agoI doubt the terms of that agreement include fix-it-yourself maintenance.ceejayoz 9y agoI'd imagine you're correct, but I'd also imagine critical military agreements include a "Microsoft will fix it, and fast" level of maintenance.cududa 9y agoCorrect. There multiple floors of multiple buildings in Redmond dedicated to thiscududa 9y ago1) it is free 2) no ones provided enough source to develop and patch components and successfully build new DLLs, EXEs, etc