diff --git a/External/FEXCore/Source/CMakeLists.txt b/External/FEXCore/Source/CMakeLists.txt
index aa2c2da71..cbe6ebc93 100644
--- a/External/FEXCore/Source/CMakeLists.txt
+++ b/External/FEXCore/Source/CMakeLists.txt
@@ -229,6 +229,8 @@ set (LIBS fmt::fmt vixl xxhash tiny-json FEXHeaderUtils)
 
 if (NOT MINGW_BUILD)
   list (APPEND LIBS dl)
+else()
+  list (APPEND LIBS synchronization)
 endif()
 
 if (ENABLE_JEMALLOC)
@@ -399,6 +401,12 @@ function(AddLibrary Name Type)
   if (MINGW_BUILD)
     # Mingw build isn't building a linux shared library, so it can't have a SONAME.
     set_target_properties(${Name} PROPERTIES NO_SONAME ON)
+    # Change the suffixes otherwise cmake continues using .a and .so
+    if (${Type} STREQUAL SHARED)
+      set_target_properties(${Name} PROPERTIES SUFFIX ".dll")
+    elseif(${Type} STREQUAL STATIC)
+      set_target_properties(${Name} PROPERTIES SUFFIX ".lib")
+    endif()
   endif()
 
   AddDefaultOptionsToTarget(${Name})
diff --git a/External/FEXCore/Source/Common/SoftFloat.h b/External/FEXCore/Source/Common/SoftFloat.h
index b42800867..31c35d0ad 100644
--- a/External/FEXCore/Source/Common/SoftFloat.h
+++ b/External/FEXCore/Source/Common/SoftFloat.h
@@ -445,6 +445,7 @@ struct FEX_PACKED X80SoftFloat {
     return FEXCore::BitCast<double>(Result);
   }
 
+#ifndef _WIN32
   operator BIGFLOAT() const {
 #if BIGFLOATSIZE == 16
     const float128_t Result = extF80_to_f128(*this);
@@ -455,6 +456,7 @@ struct FEX_PACKED X80SoftFloat {
     return result;
 #endif
   }
+#endif
 
   operator int16_t() const {
     auto rv = extF80_to_i32(*this, softfloat_roundingMode, false);
@@ -523,6 +525,7 @@ struct FEX_PACKED X80SoftFloat {
     *this = f64_to_extF80(FEXCore::BitCast<float64_t>(rhs));
   }
 
+#ifndef _WIN32
   X80SoftFloat(BIGFLOAT rhs) {
 #if BIGFLOATSIZE == 16
     *this = f128_to_extF80(FEXCore::BitCast<float128_t>(rhs));
@@ -530,6 +533,7 @@ struct FEX_PACKED X80SoftFloat {
     *this = FEXCore::BitCast<long double>(rhs);
 #endif
   }
+#endif
 
   X80SoftFloat(const int16_t rhs) {
     *this = i32_to_extF80(rhs);
diff --git a/External/FEXCore/Source/Interface/Core/Core.cpp b/External/FEXCore/Source/Interface/Core/Core.cpp
index aa49a24ba..b20253231 100644
--- a/External/FEXCore/Source/Interface/Core/Core.cpp
+++ b/External/FEXCore/Source/Interface/Core/Core.cpp
@@ -66,9 +66,7 @@ $end_info$
 #include <signal.h>
 #include <stdio.h>
 #include <string_view>
-#include <sys/mman.h>
 #include <sys/stat.h>
-#include <sys/syscall.h>
 #include <type_traits>
 #include <unistd.h>
 #include <unordered_map>
@@ -714,6 +712,7 @@ namespace FEXCore::Context {
   }
 
   static void IRDumper(FEXCore::Core::InternalThreadState *Thread, IR::IREmitter *IREmitter, uint64_t GuestRIP, IR::RegisterAllocationData* RA) {
+#ifndef _WIN32
     int FD {-1};
     bool CloseAfter = false;
     const auto DumpIRStr = static_cast<ContextImpl*>(Thread->CTX)->Config.DumpIR();
@@ -742,6 +741,7 @@ namespace FEXCore::Context {
         close(FD);
       }
     }
+#endif
   };
 
   static void ValidateIR(ContextImpl *ctx, IR::IREmitter *IREmitter) {
diff --git a/External/FEXCore/Source/Interface/Core/Dispatcher/Dispatcher.cpp b/External/FEXCore/Source/Interface/Core/Dispatcher/Dispatcher.cpp
index 42bd4be8e..55191808e 100644
--- a/External/FEXCore/Source/Interface/Core/Dispatcher/Dispatcher.cpp
+++ b/External/FEXCore/Source/Interface/Core/Dispatcher/Dispatcher.cpp
@@ -6,7 +6,6 @@
 #include <FEXCore/Config/Config.h>
 #include <FEXCore/Core/CoreState.h>
 #include <FEXCore/Core/SignalDelegator.h>
-#include <FEXCore/Core/UContext.h>
 #include <FEXCore/Core/X86Enums.h>
 #include <FEXCore/Debug/InternalThreadState.h>
 #include <FEXCore/Utils/Event.h>
diff --git a/External/FEXCore/Source/Interface/Core/JIT/Arm64/JIT.cpp b/External/FEXCore/Source/Interface/Core/JIT/Arm64/JIT.cpp
index f4439f333..c095f8ea4 100644
--- a/External/FEXCore/Source/Interface/Core/JIT/Arm64/JIT.cpp
+++ b/External/FEXCore/Source/Interface/Core/JIT/Arm64/JIT.cpp
@@ -23,7 +23,6 @@ $end_info$
 #include "Utils/MemberFunctionToPointer.h"
 
 #include <FEXCore/Core/X86Enums.h>
-#include <FEXCore/Core/UContext.h>
 #include <FEXCore/Utils/Allocator.h>
 #include <FEXCore/Utils/CompilerDefs.h>
 #include <FEXCore/Utils/EnumUtils.h>
@@ -31,7 +30,6 @@ $end_info$
 
 #include "Interface/Core/Interpreter/InterpreterOps.h"
 
-#include <sys/mman.h>
 #include <stdio.h>
 #include <unistd.h>
 #include <string.h>
diff --git a/External/FEXCore/Source/Interface/Core/JIT/Arm64/MiscOps.cpp b/External/FEXCore/Source/Interface/Core/JIT/Arm64/MiscOps.cpp
index 61bd7b782..4571eba3a 100644
--- a/External/FEXCore/Source/Interface/Core/JIT/Arm64/MiscOps.cpp
+++ b/External/FEXCore/Source/Interface/Core/JIT/Arm64/MiscOps.cpp
@@ -4,7 +4,10 @@ tags: backend|arm64
 $end_info$
 */
 
+#ifndef _WIN32
 #include <syscall.h>
+#endif
+
 #include "Interface/Core/ArchHelpers/CodeEmitter/Emitter.h"
 #include "Interface/Core/JIT/Arm64/JITClass.h"
 #include "FEXCore/Debug/InternalThreadState.h"
@@ -34,6 +37,7 @@ DEF_OP(Fence) {
   }
 }
 
+#ifndef _WIN32
 DEF_OP(Break) {
   auto Op = IROp->C<IR::IROp_Break>();
 
@@ -73,6 +77,11 @@ DEF_OP(Break) {
     break;
   }
 }
+#else
+DEF_OP(Break) {
+  ERROR_AND_DIE_FMT("Unsupported");
+}
+#endif
 
 DEF_OP(GetRoundingMode) {
   auto Dst = GetReg(Node);
@@ -157,6 +166,7 @@ DEF_OP(Print) {
   PopDynamicRegsAndLR();
 }
 
+#ifndef _WIN32
 DEF_OP(ProcessorID) {
   // We always need to spill x8 since we can't know if it is live at this SSA location
   uint32_t SpillMask = 1U << 8;
@@ -207,6 +217,11 @@ DEF_OP(ProcessorID) {
   // Node is in w1
   orr(ARMEmitter::Size::i64Bit, GetReg(Node), ARMEmitter::Reg::r0, ARMEmitter::Reg::r1, ARMEmitter::ShiftType::LSL, 12);
 }
+#else
+DEF_OP(ProcessorID) {
+  ERROR_AND_DIE_FMT("Unsupported");
+}
+#endif
 
 DEF_OP(RDRAND) {
   auto Op = IROp->C<IR::IROp_RDRAND>();
diff --git a/External/FEXCore/Source/Interface/Core/JIT/x86_64/JIT.cpp b/External/FEXCore/Source/Interface/Core/JIT/x86_64/JIT.cpp
index 13ff409fd..0bac3a0cb 100644
--- a/External/FEXCore/Source/Interface/Core/JIT/x86_64/JIT.cpp
+++ b/External/FEXCore/Source/Interface/Core/JIT/x86_64/JIT.cpp
@@ -35,7 +35,6 @@ $end_info$
 #include <stddef.h>
 #include <stdint.h>
 #include <signal.h>
-#include <sys/mman.h>
 #include <tuple>
 #include <unordered_map>
 #include <utility>
diff --git a/External/FEXCore/Source/Utils/LogManager.cpp b/External/FEXCore/Source/Utils/LogManager.cpp
index 75cd33a85..da24b0424 100644
--- a/External/FEXCore/Source/Utils/LogManager.cpp
+++ b/External/FEXCore/Source/Utils/LogManager.cpp
@@ -9,9 +9,9 @@ $end_info$
 #include <FEXCore/fextl/fmt.h>
 #include <FEXCore/fextl/vector.h>
 
-#include <alloca.h>
 #include <cstdarg>
 #include <cstdio>
+#include <malloc.h>
 
 namespace LogMan {
 
diff --git a/External/FEXCore/Source/Utils/Profiler.cpp b/External/FEXCore/Source/Utils/Profiler.cpp
index c927c444f..c1f22ac63 100644
--- a/External/FEXCore/Source/Utils/Profiler.cpp
+++ b/External/FEXCore/Source/Utils/Profiler.cpp
@@ -2,9 +2,11 @@
 #include <cstdint>
 #include <fcntl.h>
 #include <limits.h>
+#ifndef _WIN32
 #include <linux/magic.h>
 #include <sys/stat.h>
 #include <sys/vfs.h>
+#endif
 
 #include <FEXCore/Utils/LogManager.h>
 #include <FEXCore/Utils/Profiler.h>
diff --git a/External/FEXCore/include/FEXCore/Utils/InterruptableConditionVariable.h b/External/FEXCore/include/FEXCore/Utils/InterruptableConditionVariable.h
index a1f786da7..52535449c 100644
--- a/External/FEXCore/include/FEXCore/Utils/InterruptableConditionVariable.h
+++ b/External/FEXCore/include/FEXCore/Utils/InterruptableConditionVariable.h
@@ -4,8 +4,14 @@
 #include <chrono>
 #include <climits>
 #include <cstdint>
+#ifndef _WIN32
 #include <linux/futex.h>
 #include <sys/syscall.h>
+#else
+#include <errhandlingapi.h>
+#include <synchapi.h>
+#include <winerror.h>
+#endif
 #include <unistd.h>
 
 namespace FEXCore {
@@ -17,6 +23,7 @@ namespace FEXCore {
    * call can leave the condition variable in an invalid state that breaks later
    * uses of that object and may cause hangs as a consequence.
    */
+#ifndef _WIN32
   class InterruptableConditionVariable final {
     public:
       bool Wait(struct timespec *Timeout = nullptr) {
@@ -86,4 +93,68 @@ namespace FEXCore {
         }
       }
   };
+#else
+  class InterruptableConditionVariable final {
+    public:
+      bool Wait(struct timespec *Timeout = nullptr) {
+        while (true) {
+          uint32_t Expected = SIGNALED;
+          uint32_t Desired = UNSIGNALED;
+
+          // If the mutex was already signaled then we can early exit
+          if (Mutex.compare_exchange_strong(Expected, Desired)) {
+            return true;
+          }
+          // Windows only supports millisecond granularity.
+          const uint32_t TimeoutMS = Timeout ? Timeout->tv_sec * 1000 + (Timeout->tv_nsec / 1000000) : 0;
+
+          // WaitOnAddress returns when the value at `Address` differs from the value at `CompareAddress`.
+          bool Result = WaitOnAddress(&Mutex, &Desired, 4, TimeoutMS);
+
+          if (Timeout && Result == false && GetLastError() == ERROR_TIMEOUT) {
+            return false;
+          }
+        }
+      }
+
+      template<class Rep, class Period>
+      bool WaitFor(std::chrono::duration<Rep, Period> const& time) {
+        struct timespec Timeout{};
+        auto SecondsDuration = std::chrono::duration_cast<std::chrono::seconds>(time);
+        Timeout.tv_sec = SecondsDuration.count();
+        Timeout.tv_nsec = std::chrono::duration_cast<std::chrono::nanoseconds>(time - SecondsDuration).count();
+        return Wait(&Timeout);
+      }
+
+      void NotifyOne() {
+        DoNotify(false);
+      }
+
+      void NotifyAll() {
+        // Maximum number of waiters
+        DoNotify(true);
+      }
+
+    private:
+      std::atomic<uint32_t> Mutex{};
+      constexpr static uint32_t SIGNALED = 1;
+      constexpr static uint32_t UNSIGNALED = 0;
+
+      void DoNotify(bool All) {
+        uint32_t Expected = UNSIGNALED;
+        uint32_t Desired = SIGNALED;
+
+        // If the mutex was in an unsignaled state then signal
+        if (Mutex.compare_exchange_strong(Expected, Desired)) {
+          if (All) {
+            WakeByAddressAll(&Mutex);
+          }
+          else {
+            WakeByAddressSingle(&Mutex);
+          }
+        }
+      }
+  };
+
+#endif
 }
diff --git a/FEXHeaderUtils/FEXHeaderUtils/ScopedSignalMask.h b/FEXHeaderUtils/FEXHeaderUtils/ScopedSignalMask.h
index a24a977ba..0996b4b8b 100644
--- a/FEXHeaderUtils/FEXHeaderUtils/ScopedSignalMask.h
+++ b/FEXHeaderUtils/FEXHeaderUtils/ScopedSignalMask.h
@@ -6,8 +6,10 @@
 #include <cstdint>
 #include <mutex>
 #include <shared_mutex>
+#ifndef _WIN32
 #include <signal.h>
 #include <sys/syscall.h>
+#endif
 #include <unistd.h>
 
 namespace FHU {
@@ -30,6 +32,7 @@ namespace FHU {
    * 1) Unlock Mutex
    * 2) Unmask signals
    */
+#ifndef _WIN32
   template<typename MutexType, void (MutexType::*lock_fn)(), void (MutexType::*unlock_fn)()>
   class ScopedSignalMaskWithMutexBase final {
     public:
@@ -66,6 +69,39 @@ namespace FHU {
       uint64_t OriginalMask{};
       MutexType *Mutex;
   };
+#else
+  // TODO: Doesn't block signals which may or may not cause issues.
+  template<typename MutexType, void (MutexType::*lock_fn)(), void (MutexType::*unlock_fn)()>
+  class ScopedSignalMaskWithMutexBase final {
+    public:
+
+      ScopedSignalMaskWithMutexBase(MutexType &_Mutex, [[maybe_unused]] uint64_t Mask = ~0ULL)
+        : Mutex {&_Mutex} {
+        // Lock the mutex
+        (Mutex->*lock_fn)();
+      }
+
+      // No copy or assignment possible
+      ScopedSignalMaskWithMutexBase(const ScopedSignalMaskWithMutexBase&) = delete;
+      ScopedSignalMaskWithMutexBase& operator=(ScopedSignalMaskWithMutexBase&) = delete;
+
+      // Only move
+      ScopedSignalMaskWithMutexBase(ScopedSignalMaskWithMutexBase &&rhs)
+       : Mutex {rhs.Mutex} {
+        rhs.Mutex = nullptr;
+      }
+
+      ~ScopedSignalMaskWithMutexBase() {
+        if (Mutex != nullptr) {
+          // Unlock the mutex
+          (Mutex->*unlock_fn)();
+        }
+      }
+    private:
+      MutexType *Mutex;
+  };
+
+#endif
 
   using ScopedSignalMaskWithMutex = ScopedSignalMaskWithMutexBase<std::mutex, &std::mutex::lock, &std::mutex::unlock>;
   using ScopedSignalMaskWithSharedLock = ScopedSignalMaskWithMutexBase<std::shared_mutex, &std::shared_mutex::lock_shared, &std::shared_mutex::unlock_shared>;
diff --git a/Source/Tools/FEXLoader/ELFCodeLoader.h b/Source/Tools/FEXLoader/ELFCodeLoader.h
index 0223e40f9..78705f761 100644
--- a/Source/Tools/FEXLoader/ELFCodeLoader.h
+++ b/Source/Tools/FEXLoader/ELFCodeLoader.h
@@ -5,6 +5,7 @@
 #include "Common/FDUtils.h"
 #include "FEXCore/Utils/Allocator.h"
 #include "LinuxSyscalls/Syscalls.h"
+#include "LinuxSyscalls/UContext.h"
 #include "VDSO_Emulation.h"
 #include "Linux/Utils/ELFParser.h"
 #include "Linux/Utils/ELFSymbolDatabase.h"
@@ -18,7 +19,6 @@
 #include <FEXCore/Core/CodeLoader.h>
 #include <FEXCore/Core/CoreState.h>
 #include <FEXCore/Utils/MathUtils.h>
-#include <FEXCore/Core/UContext.h>
 #include <FEXCore/Core/X86Enums.h>
 #include <FEXCore/Utils/LogManager.h>
 #include <FEXCore/fextl/list.h>
diff --git a/Source/Tools/FEXLoader/LinuxSyscalls/ArchHelpers/MContext.h b/Source/Tools/FEXLoader/LinuxSyscalls/ArchHelpers/MContext.h
index 71e4109b1..bc4232430 100644
--- a/Source/Tools/FEXLoader/LinuxSyscalls/ArchHelpers/MContext.h
+++ b/Source/Tools/FEXLoader/LinuxSyscalls/ArchHelpers/MContext.h
@@ -1,8 +1,9 @@
 #pragma once
 
+#include "LinuxSyscalls/UContext.h"
+
 #include <FEXCore/Utils/LogManager.h>
 #include <FEXCore/Core/CoreState.h>
-#include <FEXCore/Core/UContext.h>
 #include <FEXCore/Core/X86Enums.h>
 
 #include <signal.h>
diff --git a/External/FEXCore/include/FEXCore/Core/UContext.h b/Source/Tools/FEXLoader/LinuxSyscalls/UContext.h
similarity index 100%
rename from External/FEXCore/include/FEXCore/Core/UContext.h
rename to Source/Tools/FEXLoader/LinuxSyscalls/UContext.h
diff --git a/Source/Tools/FEXLoader/LinuxSyscalls/x32/Signals.cpp b/Source/Tools/FEXLoader/LinuxSyscalls/x32/Signals.cpp
index e668442b7..fbe237264 100644
--- a/Source/Tools/FEXLoader/LinuxSyscalls/x32/Signals.cpp
+++ b/Source/Tools/FEXLoader/LinuxSyscalls/x32/Signals.cpp
@@ -6,12 +6,12 @@ $end_info$
 
 #include "LinuxSyscalls/SignalDelegator.h"
 #include "LinuxSyscalls/Syscalls.h"
+#include "LinuxSyscalls/UContext.h"
 #include "LinuxSyscalls/x64/Syscalls.h"
 #include "LinuxSyscalls/x32/Syscalls.h"
 #include "LinuxSyscalls/x32/Types.h"
 
 #include <FEXCore/Core/SignalDelegator.h>
-#include <FEXCore/Core/UContext.h>
 #include <errno.h>
 #include <signal.h>
 #include <stdint.h>
diff --git a/Source/Tools/FEXLoader/LinuxSyscalls/x32/Thread.cpp b/Source/Tools/FEXLoader/LinuxSyscalls/x32/Thread.cpp
index 3f986609f..77406e456 100644
--- a/Source/Tools/FEXLoader/LinuxSyscalls/x32/Thread.cpp
+++ b/Source/Tools/FEXLoader/LinuxSyscalls/x32/Thread.cpp
@@ -6,6 +6,7 @@ $end_info$
 
 #include "LinuxSyscalls/SignalDelegator.h"
 #include "LinuxSyscalls/Syscalls.h"
+#include "LinuxSyscalls/UContext.h"
 #include "LinuxSyscalls/x32/Syscalls.h"
 #include "LinuxSyscalls/x32/Thread.h"
 #include "LinuxSyscalls/x32/Types.h"
@@ -13,7 +14,6 @@ $end_info$
 #include "LinuxSyscalls/x64/Syscalls.h"
 
 #include <FEXCore/Core/CoreState.h>
-#include <FEXCore/Core/UContext.h>
 #include <FEXCore/Debug/InternalThreadState.h>
 #include <FEXCore/HLE/Linux/ThreadManagement.h>
 #include <FEXCore/fextl/vector.h>
diff --git a/Source/Tools/FEXLoader/TestHarnessRunner/HostRunner.cpp b/Source/Tools/FEXLoader/TestHarnessRunner/HostRunner.cpp
index 5fce12ef8..3f648053f 100644
--- a/Source/Tools/FEXLoader/TestHarnessRunner/HostRunner.cpp
+++ b/Source/Tools/FEXLoader/TestHarnessRunner/HostRunner.cpp
@@ -1,9 +1,9 @@
 #include "LinuxSyscalls/SignalDelegator.h"
+#include "LinuxSyscalls/UContext.h"
 #include <FEXCore/Config/Config.h>
 #include <FEXCore/Core/CPUBackend.h>
 #include <FEXCore/Core/Context.h>
 #include <FEXCore/Core/CoreState.h>
-#include <FEXCore/Core/UContext.h>
 #include <FEXCore/Core/X86Enums.h>
 #include <FEXCore/Debug/InternalThreadState.h>
 #include <FEXCore/fextl/list.h>