diff --git a/TitanEngine/TitanEngine.Debugger.Data.cpp b/TitanEngine/TitanEngine.Debugger.Data.cpp
index b7a8a71..709a9da 100644
--- a/TitanEngine/TitanEngine.Debugger.Data.cpp
+++ b/TitanEngine/TitanEngine.Debugger.Data.cpp
@@ -159,6 +159,69 @@ __declspec(dllexport) bool TITCALL IsFileBeingDebugged()
     return(engineFileIsBeingDebugged);
 }
 
+__declspec(dllexport) bool TITCALL GetSessionInfo(TITAN_SESSION_INFO* SessionInfo)
+{
+    if(!SessionInfo)
+    {
+        SetLastError(ERROR_INVALID_PARAMETER);
+        return false;
+    }
+    RtlZeroMemory(SessionInfo, sizeof(*SessionInfo));
+    SessionInfo->structSize = sizeof(*SessionInfo);
+    if(!engineFileIsBeingDebugged && !dbgProcessInformation.dwProcessId)
+        return true;
+    SessionInfo->kind = UE_SESSION_LIVE;
+    SessionInfo->capabilities = UE_SESSION_CAP_MEMORY_READ | UE_SESSION_CAP_MEMORY_QUERY |
+                                UE_SESSION_CAP_CONTEXT_READ | UE_SESSION_CAP_FORWARD_EXECUTION |
+                                UE_SESSION_CAP_MEMORY_WRITE | UE_SESSION_CAP_CONTEXT_WRITE |
+                                UE_SESSION_CAP_PROCESS_CONTROL | UE_SESSION_CAP_THREAD_CONTROL |
+                                UE_SESSION_CAP_NATIVE_HANDLES | UE_SESSION_CAP_EXCEPTION_CONTINUE;
+#ifdef _WIN64
+    SessionInfo->machineType = IMAGE_FILE_MACHINE_AMD64;
+#else
+    SessionInfo->machineType = IMAGE_FILE_MACHINE_I386;
+#endif
+    SessionInfo->processId = dbgProcessInformation.dwProcessId;
+    SessionInfo->threadId = dbgProcessInformation.dwThreadId;
+    return true;
+}
+
+__declspec(dllexport) bool TITCALL ReplayGetPosition(TITAN_REPLAY_POSITION* Position)
+{
+    if(Position)
+        RtlZeroMemory(Position, sizeof(*Position));
+    SetLastError(ERROR_NOT_SUPPORTED);
+    return false;
+}
+
+__declspec(dllexport) bool TITCALL ReplayGetExtent(TITAN_REPLAY_POSITION* First, TITAN_REPLAY_POSITION* Last)
+{
+    if(First)
+        RtlZeroMemory(First, sizeof(*First));
+    if(Last)
+        RtlZeroMemory(Last, sizeof(*Last));
+    SetLastError(ERROR_NOT_SUPPORTED);
+    return false;
+}
+
+__declspec(dllexport) bool TITCALL ReplaySetPosition(const TITAN_REPLAY_POSITION* Position)
+{
+    SetLastError(Position ? ERROR_NOT_SUPPORTED : ERROR_INVALID_PARAMETER);
+    return false;
+}
+
+__declspec(dllexport) bool TITCALL ReplayRun(bool Reverse)
+{
+    SetLastError(ERROR_NOT_SUPPORTED);
+    return false;
+}
+
+__declspec(dllexport) bool TITCALL ReplayStep(bool Reverse, bool StepOver, TITANCBSTEP StepCallBack)
+{
+    SetLastError(ERROR_NOT_SUPPORTED);
+    return false;
+}
+
 __declspec(dllexport) void TITCALL SetErrorModel(bool DisplayErrorMessages)
 {
 
diff --git a/TitanEngine/TitanEngine.Debugger.cpp b/TitanEngine/TitanEngine.Debugger.cpp
index c39e2ac..0eedd8c 100644
--- a/TitanEngine/TitanEngine.Debugger.cpp
+++ b/TitanEngine/TitanEngine.Debugger.cpp
@@ -303,6 +303,12 @@ static bool HollowProcessWithoutASLR(const wchar_t* szFileName, PROCESS_INFORMAT
     return success;
 }
 
+__declspec(dllexport) PROCESS_INFORMATION* TITCALL InitReplayW(const wchar_t* szArtifactPath, TitanSessionKind ExpectedKind)
+{
+    SetLastError(ERROR_NOT_SUPPORTED);
+    return nullptr;
+}
+
 __declspec(dllexport) void* TITCALL InitDebugW(wchar_t* szFileName, wchar_t* szCommandLine, wchar_t* szCurrentFolder)
 {
     int creationFlags = DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS;
diff --git a/TitanEngine/TitanEngine.Process.cpp b/TitanEngine/TitanEngine.Process.cpp
index cefa75a..29094d7 100644
--- a/TitanEngine/TitanEngine.Process.cpp
+++ b/TitanEngine/TitanEngine.Process.cpp
@@ -142,6 +142,27 @@ __declspec(dllexport) HANDLE TITCALL TitanOpenThread(DWORD dwDesiredAccess, bool
     return EngineOpenThread(dwDesiredAccess, bInheritHandle, dwThreadId);
 }
 
+__declspec(dllexport) bool TITCALL TitanGetProcessImagePathW(HANDLE hProcess, LPWSTR szPath, SIZE_T cchPath)
+{
+    if(!hProcess || !szPath || !cchPath || cchPath > MAXDWORD)
+    {
+        SetLastError(ERROR_INVALID_PARAMETER);
+        return false;
+    }
+    DWORD length = (DWORD)cchPath;
+    return !!QueryFullProcessImageNameW(hProcess, 0, szPath, &length);
+}
+
+__declspec(dllexport) bool TITCALL TitanGetModulePathW(HANDLE hProcess, ULONG_PTR ModuleBase, LPWSTR szPath, SIZE_T cchPath)
+{
+    if(!hProcess || !ModuleBase || !szPath || !cchPath || cchPath > MAXDWORD)
+    {
+        SetLastError(ERROR_INVALID_PARAMETER);
+        return false;
+    }
+    return GetModuleFileNameExW(hProcess, (HMODULE)ModuleBase, szPath, (DWORD)cchPath) != 0;
+}
+
 __declspec(dllexport) bool TITCALL TitanCloseHandle(HANDLE hEngineHandle)
 {
     return EngineCloseHandle(hEngineHandle);
diff --git a/TitanEngine/TitanEngine.def b/TitanEngine/TitanEngine.def
index b552675..13a514e 100644
--- a/TitanEngine/TitanEngine.def
+++ b/TitanEngine/TitanEngine.def
@@ -87,6 +87,13 @@ FixHeaderCheckSum
 FixHeaderCheckSumW
 InitDebug
 InitDebugW
+InitReplayW
+GetSessionInfo
+ReplayGetPosition
+ReplayGetExtent
+ReplaySetPosition
+ReplayRun
+ReplayStep
 InitNativeDebug
 InitNativeDebugW
 InitDebugEx
@@ -394,6 +401,8 @@ GetActiveProcessId
 GetActiveProcessIdW
 EnumProcessesWithLibrary
 TitanOpenProcess
+TitanGetProcessImagePathW
+TitanGetModulePathW
 TitanCloseHandle
 ProcessIsWow64
 TitanTerminateProcess
diff --git a/TitanEngine/definitions.h b/TitanEngine/definitions.h
index 51f9289..939efba 100644
--- a/TitanEngine/definitions.h
+++ b/TitanEngine/definitions.h
@@ -166,6 +166,13 @@ __declspec(dllexport) long TITCALL LengthDisassemble(LPVOID DisassmAddress);
 
 __declspec(dllexport) void* TITCALL InitDebug(char* szFileName, char* szCommandLine, char* szCurrentFolder);
 __declspec(dllexport) void* TITCALL InitDebugW(wchar_t* szFileName, wchar_t* szCommandLine, wchar_t* szCurrentFolder);
+__declspec(dllexport) PROCESS_INFORMATION* TITCALL InitReplayW(const wchar_t* szArtifactPath, TitanSessionKind ExpectedKind);
+__declspec(dllexport) bool TITCALL GetSessionInfo(TITAN_SESSION_INFO* SessionInfo);
+__declspec(dllexport) bool TITCALL ReplayGetPosition(TITAN_REPLAY_POSITION* Position);
+__declspec(dllexport) bool TITCALL ReplayGetExtent(TITAN_REPLAY_POSITION* First, TITAN_REPLAY_POSITION* Last);
+__declspec(dllexport) bool TITCALL ReplaySetPosition(const TITAN_REPLAY_POSITION* Position);
+__declspec(dllexport) bool TITCALL ReplayRun(bool Reverse);
+__declspec(dllexport) bool TITCALL ReplayStep(bool Reverse, bool StepOver, TITANCBSTEP StepCallBack);
 __declspec(dllexport) void* TITCALL InitNativeDebug(char* szFileName, char* szCommandLine, char* szCurrentFolder);
 __declspec(dllexport) void* TITCALL InitNativeDebugW(wchar_t* szFileName, wchar_t* szCommandLine, wchar_t* szCurrentFolder);
 __declspec(dllexport) void* TITCALL InitDebugEx(char* szFileName, char* szCommandLine, char* szCurrentFolder, LPVOID EntryCallBack);
@@ -360,6 +367,8 @@ __declspec(dllexport) long TITCALL GetActiveProcessId(char* szImageName);
 __declspec(dllexport) long TITCALL GetActiveProcessIdW(wchar_t* szImageName);
 __declspec(dllexport) void TITCALL EnumProcessesWithLibrary(char* szLibraryName, void* EnumFunction);
 __declspec(dllexport) HANDLE TITCALL TitanOpenProcess(DWORD dwDesiredAccess, bool bInheritHandle, DWORD dwProcessId);
+__declspec(dllexport) bool TITCALL TitanGetProcessImagePathW(HANDLE hProcess, LPWSTR szPath, SIZE_T cchPath);
+__declspec(dllexport) bool TITCALL TitanGetModulePathW(HANDLE hProcess, ULONG_PTR ModuleBase, LPWSTR szPath, SIZE_T cchPath);
 __declspec(dllexport) bool TITCALL TitanCloseHandle(HANDLE hEngineHandle);
 __declspec(dllexport) bool TITCALL ProcessIsWow64(HANDLE hProcess, PBOOL isWow64);
 __declspec(dllexport) bool TITCALL TitanTerminateProcess(HANDLE hProcess, DWORD exitCode);
diff --git a/TitanEngine/stdafx.h b/TitanEngine/stdafx.h
index a3b3ee8..f2ee3c3 100644
--- a/TitanEngine/stdafx.h
+++ b/TitanEngine/stdafx.h
@@ -33,6 +33,8 @@
 #include <time.h>
 #include <stdint.h>
 
+typedef void(*TITANCBSTEP)();
+
 #ifndef _Out_writes_opt_
 #define _Out_writes_opt_(x)
 #endif
@@ -127,6 +129,51 @@ static inline T ObjectPointerToCallback(LPVOID callbackData)
 #define CONTEXT_EXTENDED_REGISTERS 0
 #endif
 
+enum TitanSessionKind
+{
+    UE_SESSION_NONE = 0,
+    UE_SESSION_LIVE = 1,
+    UE_SESSION_MINIDUMP = 2,
+    UE_SESSION_TTD = 3,
+    UE_SESSION_STATIC = 4,
+};
+
+enum TitanSessionCapability : uint64_t
+{
+    UE_SESSION_CAP_MEMORY_READ = 1ull << 0,
+    UE_SESSION_CAP_MEMORY_QUERY = 1ull << 1,
+    UE_SESSION_CAP_CONTEXT_READ = 1ull << 2,
+    UE_SESSION_CAP_FORWARD_EXECUTION = 1ull << 3,
+    UE_SESSION_CAP_REVERSE_EXECUTION = 1ull << 4,
+    UE_SESSION_CAP_EXACT_POSITION = 1ull << 5,
+    UE_SESSION_CAP_LOGICAL_CODE_BREAKPOINT = 1ull << 6,
+    UE_SESSION_CAP_LOGICAL_DATA_BREAKPOINT = 1ull << 7,
+    UE_SESSION_CAP_MEMORY_WRITE = 1ull << 8,
+    UE_SESSION_CAP_CONTEXT_WRITE = 1ull << 9,
+    UE_SESSION_CAP_PROCESS_CONTROL = 1ull << 10,
+    UE_SESSION_CAP_THREAD_CONTROL = 1ull << 11,
+    UE_SESSION_CAP_NATIVE_HANDLES = 1ull << 12,
+    UE_SESSION_CAP_EXCEPTION_CONTINUE = 1ull << 13,
+    UE_SESSION_CAP_TIMELINE_STATE = 1ull << 14,
+};
+
+typedef struct
+{
+    DWORD structSize;
+    TitanSessionKind kind;
+    uint64_t capabilities;
+    DWORD machineType;
+    DWORD processId;
+    DWORD threadId;
+    DWORD reserved;
+} TITAN_SESSION_INFO;
+
+typedef struct
+{
+    uint64_t sequence;
+    uint64_t steps;
+} TITAN_REPLAY_POSITION;
+
 typedef struct DECLSPEC_ALIGN(16) _XmmRegister_t
 {
     ULONGLONG Low;