_MI_DYNAMICBASE_BITMAP

Windows 8.1 | Server 2012R2 Update 1
Windows 10 1507 (Original Release, Threshold 1)
Windows 10 1511 (November Update, Threshold 2)
//0x4 bytes (sizeof)
enum _MI_DYNAMICBASE_BITMAP
{
    DynamicBaseBitMap32 = 0,
    DynamicBaseBitMap64Low = 1,
    DynamicBaseBitMap64High = 2,
    DynamicBaseBitMapWow64Dll = 3,
    LastDynamicBaseBitMap = 4
};