diff --git a/GraphicsCapture/GlobalCaptureStuff.h b/GraphicsCapture/GlobalCaptureStuff.h
index 80467f78..1ec58110 100644
--- a/GraphicsCapture/GlobalCaptureStuff.h
+++ b/GraphicsCapture/GlobalCaptureStuff.h
@@ -36,6 +36,8 @@
 #define INFO_MEMORY             TEXT("Local\\OBSInfoMemory")
 #define TEXTURE_MEMORY          TEXT("Local\\OBSTextureMemory")
 
+#define OBS_KEEPALIVE_EVENT     TEXT("OBS_KeepAlive")
+
 #define CAPTURETYPE_MEMORY      1
 #define CAPTURETYPE_SHAREDTEX   2
 
diff --git a/GraphicsCapture/GraphicsCaptureHook/D3D10.1Capture.cpp b/GraphicsCapture/GraphicsCaptureHook/D3D10.1Capture.cpp
index 3a5fd694..73532d69 100644
--- a/GraphicsCapture/GraphicsCaptureHook/D3D10.1Capture.cpp
+++ b/GraphicsCapture/GraphicsCaptureHook/D3D10.1Capture.cpp
@@ -200,6 +200,22 @@ void DoD3D101Capture(IDXGISwapChain *swap)
 
         if(bHasTextures)
         {
+            //check keep alive state, dumb but effective
+            if(bCapturing)
+            {
+                LONGLONG curTime = OSGetTimeMicroseconds();
+                if((curTime-keepAliveTime) > 3000000)
+                {
+                    HANDLE hKeepAlive = OpenEvent(EVENT_ALL_ACCESS, FALSE, strKeepAlive.c_str());
+                    if(hKeepAlive)
+                        CloseHandle(hKeepAlive);
+                    else
+                        ClearD3D101Data();
+
+                    keepAliveTime = curTime;
+                }
+            }
+
             LONGLONG frameTime;
             if(bCapturing)
             {
diff --git a/GraphicsCapture/GraphicsCaptureHook/D3D10Capture.cpp b/GraphicsCapture/GraphicsCaptureHook/D3D10Capture.cpp
index a7b691b1..35a32d63 100644
--- a/GraphicsCapture/GraphicsCaptureHook/D3D10Capture.cpp
+++ b/GraphicsCapture/GraphicsCaptureHook/D3D10Capture.cpp
@@ -201,6 +201,22 @@ void DoD3D10Capture(IDXGISwapChain *swap)
 
         if(bHasTextures)
         {
+            //check keep alive state, dumb but effective
+            if(bCapturing)
+            {
+                LONGLONG curTime = OSGetTimeMicroseconds();
+                if((curTime-keepAliveTime) > 3000000)
+                {
+                    HANDLE hKeepAlive = OpenEvent(EVENT_ALL_ACCESS, FALSE, strKeepAlive.c_str());
+                    if(hKeepAlive)
+                        CloseHandle(hKeepAlive);
+                    else
+                        ClearD3D10Data();
+
+                    keepAliveTime = curTime;
+                }
+            }
+
             LONGLONG frameTime;
             if(bCapturing)
             {
diff --git a/GraphicsCapture/GraphicsCaptureHook/D3D11Capture.cpp b/GraphicsCapture/GraphicsCaptureHook/D3D11Capture.cpp
index 9eb52335..b6ea01f9 100644
--- a/GraphicsCapture/GraphicsCaptureHook/D3D11Capture.cpp
+++ b/GraphicsCapture/GraphicsCaptureHook/D3D11Capture.cpp
@@ -234,6 +234,22 @@ void DoD3D11Capture(IDXGISwapChain *swap)
 
         if(bHasTextures)
         {
+            //check keep alive state, dumb but effective
+            if(bCapturing)
+            {
+                LONGLONG curTime = OSGetTimeMicroseconds();
+                if((curTime-keepAliveTime) > 3000000)
+                {
+                    HANDLE hKeepAlive = OpenEvent(EVENT_ALL_ACCESS, FALSE, strKeepAlive.c_str());
+                    if(hKeepAlive)
+                        CloseHandle(hKeepAlive);
+                    else
+                        ClearD3D11Data();
+
+                    keepAliveTime = curTime;
+                }
+            }
+
             LONGLONG frameTime;
             if(bCapturing)
             {
diff --git a/GraphicsCapture/GraphicsCaptureHook/D3D9Capture.cpp b/GraphicsCapture/GraphicsCaptureHook/D3D9Capture.cpp
index 804dc0f2..7e6dac0e 100644
--- a/GraphicsCapture/GraphicsCaptureHook/D3D9Capture.cpp
+++ b/GraphicsCapture/GraphicsCaptureHook/D3D9Capture.cpp
@@ -611,6 +611,22 @@ void DoD3D9DrawStuff(IDirect3DDevice9 *device)
 
     if(bHasTextures)
     {
+        //check keep alive state, dumb but effective
+        if(bCapturing)
+        {
+            LONGLONG curTime = OSGetTimeMicroseconds();
+            if((curTime-keepAliveTime) > 3000000)
+            {
+                HANDLE hKeepAlive = OpenEvent(EVENT_ALL_ACCESS, FALSE, strKeepAlive.c_str());
+                if(hKeepAlive)
+                    CloseHandle(hKeepAlive);
+                else
+                    ClearD3D9Data();
+
+                keepAliveTime = curTime;
+            }
+        }
+
         LONGLONG frameTime;
         if(bCapturing)
         {
diff --git a/GraphicsCapture/GraphicsCaptureHook/GraphicsCaptureHook.cpp b/GraphicsCapture/GraphicsCaptureHook/GraphicsCaptureHook.cpp
index 71b540cd..b4cae7d3 100644
--- a/GraphicsCapture/GraphicsCaptureHook/GraphicsCaptureHook.cpp
+++ b/GraphicsCapture/GraphicsCaptureHook/GraphicsCaptureHook.cpp
@@ -42,12 +42,17 @@ LARGE_INTEGER clockFreq, startTime;
 LONGLONG prevElapsedTime;
 DWORD startTick;
 
+wstring strKeepAlive;
+LONGLONG keepAliveTime = 0;
+
+
 void WINAPI OSInitializeTimer()
 {
     QueryPerformanceFrequency(&clockFreq);
     QueryPerformanceCounter(&startTime);
     startTick = GetTickCount();
     prevElapsedTime = 0;
+    keepAliveTime = 0;
 }
 
 LONGLONG WINAPI OSGetTimeMicroseconds()
@@ -262,6 +267,10 @@ DWORD WINAPI CaptureThread(HANDLE hDllMainThread)
     if(!logOutput.is_open())
         logOutput.open(lpLogPath, ios_base::in | ios_base::out | ios_base::trunc);
 
+    wstringstream str;
+    str << OBS_KEEPALIVE_EVENT << int(GetCurrentProcessId());
+    strKeepAlive = str.str();
+
     WNDCLASS wc;
     ZeroMemory(&wc, sizeof(wc));
     wc.hInstance = hinstMain;
diff --git a/GraphicsCapture/GraphicsCaptureHook/GraphicsCaptureHook.h b/GraphicsCapture/GraphicsCaptureHook/GraphicsCaptureHook.h
index d9f03baa..acf7f4b5 100644
--- a/GraphicsCapture/GraphicsCaptureHook/GraphicsCaptureHook.h
+++ b/GraphicsCapture/GraphicsCaptureHook/GraphicsCaptureHook.h
@@ -225,6 +225,9 @@ extern CaptureInfo *infoMem;
 
 extern fstream logOutput;
 
+extern wstring  strKeepAlive;
+extern LONGLONG keepAliveTime;
+
 void WINAPI OSInitializeTimer();
 LONGLONG WINAPI OSGetTimeMicroseconds();
 
diff --git a/GraphicsCapture/GraphicsCaptureSource.cpp b/GraphicsCapture/GraphicsCaptureSource.cpp
index d82a5946..0f39dc06 100644
--- a/GraphicsCapture/GraphicsCaptureSource.cpp
+++ b/GraphicsCapture/GraphicsCaptureSource.cpp
@@ -241,6 +241,8 @@ void GraphicsCaptureSource::EndCapture()
         capture = NULL;
     }
 
+    if(hOBSIsAlive)
+        CloseHandle(hOBSIsAlive);
     if(hSignalRestart)
         CloseHandle(hSignalRestart);
     if(hSignalEnd)
@@ -250,7 +252,7 @@ void GraphicsCaptureSource::EndCapture()
     if(hSignalExit)
         CloseHandle(hSignalExit);
 
-    hSignalRestart = hSignalEnd = hSignalReady = hSignalExit = NULL;
+    hSignalRestart = hSignalEnd = hSignalReady = hSignalExit = hOBSIsAlive = NULL;
 
     bErrorAcquiring = false;
 
@@ -344,6 +346,13 @@ void GraphicsCaptureSource::AttemptCapture()
     HANDLE hProcess = (*pOpenProcess)(PROCESS_ALL_ACCESS, FALSE, targetProcessID);
     if(hProcess)
     {
+        //-------------------------------------------
+        // load keepalive event
+
+        hOBSIsAlive = CreateEvent(NULL, FALSE, FALSE, String() << OBS_KEEPALIVE_EVENT << int(targetProcessID));
+
+        //-------------------------------------------
+
         hwndCapture = hwndTarget;
 
         hSignalRestart = OpenEvent(EVENT_ALL_ACCESS, FALSE, String() << RESTART_CAPTURE_EVENT << int(targetProcessID));
@@ -456,6 +465,12 @@ void GraphicsCaptureSource::AttemptCapture()
 
         CloseHandle(hProcess);
         hProcess = NULL;
+
+        if (!bCapturing)
+        {
+            CloseHandle(hOBSIsAlive);
+            hOBSIsAlive = NULL;
+        }
     }
     else
     {