diff --git a/BeefLibs/corlib/src/Net/Socket.bf b/BeefLibs/corlib/src/Net/Socket.bf
index dcc2bc75..d1ae74a3 100644
--- a/BeefLibs/corlib/src/Net/Socket.bf
+++ b/BeefLibs/corlib/src/Net/Socket.bf
@@ -395,8 +395,6 @@ namespace System.Net
 			int32 size = sizeof(SockAddr_in);
 			if (bind(mHandle, &service, size) == SOCKET_ERROR)
 			{
-				int err = WSAGetLastError();
-
 				Close();
 				return .Err;
 			}
diff --git a/BeefLibs/corlib/src/Windows.bf b/BeefLibs/corlib/src/Windows.bf
index be1ce04f..afaafe64 100644
--- a/BeefLibs/corlib/src/Windows.bf
+++ b/BeefLibs/corlib/src/Windows.bf
@@ -1715,6 +1715,9 @@ namespace System
 		[Import("user32.lib"), CLink, CallingConvention(.Stdcall)]
 		public static extern HWnd SetForegroundWindow(HWnd wnd);
 
+		[Import("user32.lib"), CLink, CallingConvention(.Stdcall)]
+		public static extern HWnd ShowWindow(HWnd wnd, int32 cmdShow);
+
 		[Import("user32.lib"), CLink, CallingConvention(.Stdcall)]
 		public static extern HWnd GetForegroundWindow();
 
diff --git a/BeefTools/LogViewer/src/Board.bf b/BeefTools/LogViewer/src/Board.bf
index a76b8e37..1f6d624a 100644
--- a/BeefTools/LogViewer/src/Board.bf
+++ b/BeefTools/LogViewer/src/Board.bf
@@ -31,6 +31,9 @@ namespace LogViewer
 		public List<Match> mNewMatches ~ delete _;
 		public bool mRefreshing;
 
+		public String mFilePath ~ delete _;
+		public String mMemLogName ~ delete _;
+
 		public uint32[] mColors = new .(
 			0xFFFFFFFF,
 			0xFFFC5858,
@@ -54,6 +57,7 @@ namespace LogViewer
 			ewc.mFont = gApp.mFont;
 			ewc.mWordWrap = false;
 			ewc.mTextColors = mColors;
+			ewc.mIsReadOnly = true;
 			mDocEdit.InitScrollbars(true, true);
 			AddWidget(mDocEdit);
 
@@ -79,6 +83,12 @@ namespace LogViewer
 
 		public void Load(StringView filePath)
 		{
+			DeleteAndNullify!(mFilePath);
+			DeleteAndNullify!(mMemLogName);
+			mFilePath = new .(filePath);
+
+			mWidgetWindow.SetTitle(scope $"LogViewer - {mFilePath}");
+
 			scope AutoBeefPerf("Board.Load");
 
 			delete mContent;
@@ -89,9 +99,45 @@ namespace LogViewer
 			{
 				gApp.Fail("Failed to open file '{0}'", filePath);
 			}
+
+			mFilterDirtyCountdown = 1;
+			//Refresh();
 			//mDocEdit.SetText(mContent);
 		}
 
+		[CallingConvention(.Stdcall), CLink]
+		static extern char8* MemLogger_Get(char8* name);
+
+		public void LoadMemLog(StringView name)
+		{
+			DeleteAndNullify!(mFilePath);
+			DeleteAndNullify!(mMemLogName);
+			mMemLogName = new .(name);
+
+			mWidgetWindow.SetTitle(scope $"LogViewer - {mMemLogName}");
+
+			var result = MemLogger_Get(name.ToScopeCStr!());
+			if (result == null)
+			{
+				gApp.Fail("Failed to open MemLog '{0}'", name);
+				return;
+			}
+
+			delete mContent;
+			mContent = new String();
+			mContent.Append(result);
+
+			mFilterDirtyCountdown = 1;
+		}
+
+		public void Reload()
+		{
+			if (mFilePath != null)
+				Load(mFilePath);
+			if (mMemLogName != null)
+				LoadMemLog(mMemLogName);
+		}
+
 		void Refresh()
 		{
 			scope AutoBeefPerf("Board.Refresh");
@@ -105,37 +151,40 @@ namespace LogViewer
 
 			let filters = mFilter.Split!('\n');
 
-			for (var line in mContent.Split('\n'))
+			if (mContent != null)
 			{
-				bool hadMatch = false;
-				bool hadFilter = false;
-
-				for (var filter in filters)
+				for (var line in mContent.Split('\n'))
 				{
-					if (filter.Length == 0)
-						continue;
-					hadFilter = true;
-					int lastIdx = -1;
-					while (true)
+					bool hadMatch = false;
+					bool hadFilter = false;
+
+					for (var filter in filters)
 					{
-						int findIdx = line.IndexOf(filter, lastIdx + 1);
-						if (findIdx == -1)
-							break;
+						if (filter.Length == 0)
+							continue;
+						hadFilter = true;
+						int lastIdx = -1;
+						while (true)
+						{
+							int findIdx = line.IndexOf(filter, lastIdx + 1);
+							if (findIdx == -1)
+								break;
 
-						hadMatch = true;
-						lastIdx = findIdx + filter.Length - 1;
+							hadMatch = true;
+							lastIdx = findIdx + filter.Length - 1;
 
-						Match match;
-						match.mFilterIdx = (.)@filter;
-						match.mTextIdx = (.)(mNewContent.Length + findIdx);
-						mNewMatches.Add(match);
+							Match match;
+							match.mFilterIdx = (.)@filter;
+							match.mTextIdx = (.)(mNewContent.Length + findIdx);
+							mNewMatches.Add(match);
+						}
 					}
-				}
 
-				if ((hadMatch) || (!hadFilter))
-				{
-					mNewContent.Append(line);
-					mNewContent.Append('\n');
+					if ((hadMatch) || (!hadFilter))
+					{
+						mNewContent.Append(line);
+						mNewContent.Append('\n');
+					}
 				}
 			}
 
diff --git a/BeefTools/LogViewer/src/LVApp.bf b/BeefTools/LogViewer/src/LVApp.bf
index cbf80e79..9824e04b 100644
--- a/BeefTools/LogViewer/src/LVApp.bf
+++ b/BeefTools/LogViewer/src/LVApp.bf
@@ -8,6 +8,7 @@ using Beefy.utils;
 using System.IO;
 using System.Diagnostics;
 using System.Threading;
+using Beefy.sys;
 
 namespace LogViewer
 {
@@ -26,7 +27,7 @@ namespace LogViewer
 		{
 			base.Init();
 
-			var dialog = scope OpenFileDialog();
+			/*var dialog = scope OpenFileDialog();
 			dialog.SetFilter("All files (*.*)|*.*");
 			dialog.InitialDirectory = mInstallDir;
 			dialog.Title = "Open Log";
@@ -35,7 +36,7 @@ namespace LogViewer
 			{
 				Stop();
 				return;
-			}
+			}*/
 
 			BeefPerf.Init("127.0.0.1", "LogViewer");
 
@@ -45,7 +46,7 @@ namespace LogViewer
 
 			BFWindow.Flags windowFlags = BFWindow.Flags.Border | //BFWindow.Flags.SysMenu | //| BFWindow.Flags.CaptureMediaKeys |
 			    BFWindow.Flags.Caption | BFWindow.Flags.Minimize | BFWindow.Flags.QuitOnClose | BFWindowBase.Flags.Resizable |
-			    BFWindow.Flags.SysMenu;
+			    BFWindow.Flags.SysMenu | .Menu;
 
 			mFont = new Font();
 			float fontSize = 12;
@@ -55,17 +56,43 @@ namespace LogViewer
 			mFont.AddAlternate("Segoe UI Emoji", fontSize);
 
 			mBoard = new Board();
-			mBoard.Load(dialog.FileNames[0]);
-			mMainWindow = new WidgetWindow(null, "LogViewer", 0, 0, 1600, 1200, windowFlags, mBoard);
+			//mBoard.Load(dialog.FileNames[0]);
+			mMainWindow = new WidgetWindow(null, "LogViewer", 20, 20, 1600, 1200, windowFlags, mBoard);
 			//mMainWindow.mWindowKeyDownDelegate.Add(new => SysKeyDown);
 			mMainWindow.SetMinimumSize(480, 360);
 			mMainWindow.mIsMainWindow = true;
+
+			SysMenu root = mMainWindow.mSysMenu;
+			var subMenu = root.AddMenuItem("&File");
+			subMenu.AddMenuItem("&Open", "Ctrl+O", new (menu) =>
+				{
+					var dialog = scope OpenFileDialog();
+					dialog.SetFilter("All files (*.*)|*.*");
+					dialog.InitialDirectory = mInstallDir;
+					dialog.Title = "Open Log";
+					let result = dialog.ShowDialog();
+					if ((result case .Err) || (dialog.FileNames.Count == 0))
+					{
+						Stop();
+						return;
+					}
+					mBoard.Load(dialog.FileNames[0]);
+				});
+			subMenu.AddMenuItem("Read &MemLog", "Ctrl+M", new (menu) =>
+				{
+					var dialog = new MemLogDialog();
+					dialog.PopupWindow(mMainWindow);
+				});
+			subMenu.AddMenuItem("&Reload", "Ctrl+R", new (menu) =>
+				{
+					mBoard.Reload();
+				});
 		}
 
 		public void Fail(String str, params Object[] paramVals)
 		{
 			var errStr = scope String();
-			errStr.AppendF(str, paramVals);
+			errStr.AppendF(str, params paramVals);
 			Fail(errStr);
 		}
 
diff --git a/BeefTools/LogViewer/src/MemLogDialog.bf b/BeefTools/LogViewer/src/MemLogDialog.bf
new file mode 100644
index 00000000..8128b9e8
--- /dev/null
+++ b/BeefTools/LogViewer/src/MemLogDialog.bf
@@ -0,0 +1,21 @@
+using Beefy.theme.dark;
+using Beefy.widgets;
+
+namespace LogViewer;
+
+class MemLogDialog : DarkDialog
+{
+	EditWidget mEditWidget;
+
+	public this() : base("Open MemLog", "MemLog Name")
+	{
+		
+		mDefaultButton = AddButton("OK", new (evt) =>
+			{
+				var name = mEditWidget.GetText(.. scope .());
+				gApp.mBoard.LoadMemLog(name);
+			});
+		mEscButton = AddButton("Cancel", new (evt) => Close());
+		mEditWidget = AddEdit("");
+	}
+}
\ No newline at end of file
diff --git a/BeefySysLib/BeefySysLib.cpp b/BeefySysLib/BeefySysLib.cpp
index bfaf3143..3c6858c9 100644
--- a/BeefySysLib/BeefySysLib.cpp
+++ b/BeefySysLib/BeefySysLib.cpp
@@ -10,6 +10,7 @@
 #include "util/Vector.h"
 #include "util/PerfTimer.h"
 #include "util/TLSingleton.h"
+#include "util/MemLogger.h"
 #include "img/ImgEffects.h"
 
 #include "util/AllocDebug.h"
@@ -926,4 +927,36 @@ BF_EXPORT void BF_CALLTYPE BF_Test()
 
 	for (int i : iArr)
 		OutputDebugStrF("Hey %d\n", i);
-}
\ No newline at end of file
+}
+
+BF_EXPORT void* BF_CALLTYPE MemLogger_Create(const char* memName, int size)
+{
+	MemLogger* memLogger = new MemLogger();
+	if (!memLogger->Create(memName, size))
+	{
+		delete memLogger;
+		return NULL;
+	}
+	return memLogger;
+}
+
+BF_EXPORT void BF_CALLTYPE MemLogger_Write(MemLogger* memLogger, void* ptr, int size)
+{
+	memLogger->Write(ptr, size);
+}
+
+BF_EXPORT void BF_CALLTYPE MemLogger_Delete(MemLogger* memLogger)
+{
+	delete memLogger;
+}
+
+BF_EXPORT const char* BF_CALLTYPE MemLogger_Get(const char* memName)
+{
+	MemLogger memLogger;
+
+	String& outString = *gBeefySys_TLStrReturn.Get();
+	outString.Clear();
+	if (!memLogger.Get(memName, outString))
+		return NULL;
+	return outString.c_str();
+}
diff --git a/BeefySysLib/BeefySysLib.vcxproj b/BeefySysLib/BeefySysLib.vcxproj
index 24f095c5..5d01f54e 100644
--- a/BeefySysLib/BeefySysLib.vcxproj
+++ b/BeefySysLib/BeefySysLib.vcxproj
@@ -1950,6 +1950,7 @@ copy /y "$(OutDir)$(TargetName).lib" "$(SolutionDir)\BeefLibs\Beefy2D\dist\"</Co
     <ClCompile Include="util\MappedFile.cpp" />
     <ClCompile Include="util\MathUtils.cpp" />
     <ClCompile Include="util\Matrix4.cpp" />
+    <ClCompile Include="util\MemLogger.cpp" />
     <ClCompile Include="util\MTRand.cpp" />
     <ClCompile Include="util\PerfTimer.cpp" />
     <ClCompile Include="util\Point.cpp" />
@@ -2189,6 +2190,7 @@ copy /y "$(OutDir)$(TargetName).lib" "$(SolutionDir)\BeefLibs\Beefy2D\dist\"</Co
     <ClInclude Include="util\MappedFile.h" />
     <ClInclude Include="util\MathUtils.h" />
     <ClInclude Include="util\Matrix4.h" />
+    <ClInclude Include="util\MemLogger.h" />
     <ClInclude Include="util\MTRand.h" />
     <ClInclude Include="util\MultiDictionary.h" />
     <ClInclude Include="util\MultiHashSet.h" />
diff --git a/BeefySysLib/BeefySysLib.vcxproj.filters b/BeefySysLib/BeefySysLib.vcxproj.filters
index 55154045..5b40e16d 100644
--- a/BeefySysLib/BeefySysLib.vcxproj.filters
+++ b/BeefySysLib/BeefySysLib.vcxproj.filters
@@ -743,6 +743,9 @@
     <ClCompile Include="img\BMPData.cpp">
       <Filter>src\img</Filter>
     </ClCompile>
+    <ClCompile Include="util\MemLogger.cpp">
+      <Filter>src\util</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="Common.h">
@@ -1147,6 +1150,9 @@
     <ClInclude Include="img\BMPData.h">
       <Filter>src\img</Filter>
     </ClInclude>
+    <ClInclude Include="util\MemLogger.h">
+      <Filter>src\util</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <CustomBuild Include="third_party\libffi\i686-pc-cygwin\src\x86\win32.asm">
diff --git a/BeefySysLib/BeefySysLib_static.vcxproj b/BeefySysLib/BeefySysLib_static.vcxproj
index ac170baa..9dc0b08d 100644
--- a/BeefySysLib/BeefySysLib_static.vcxproj
+++ b/BeefySysLib/BeefySysLib_static.vcxproj
@@ -880,6 +880,7 @@
     <ClCompile Include="util\Json.cpp" />
     <ClCompile Include="util\MappedFile.cpp" />
     <ClCompile Include="util\Matrix4.cpp" />
+    <ClCompile Include="util\MemLogger.cpp" />
     <ClCompile Include="util\PerfTimer.cpp" />
     <ClCompile Include="util\Point.cpp" />
     <ClCompile Include="util\PolySpline.cpp" />
@@ -1047,6 +1048,7 @@
     <ClInclude Include="util\Json.h" />
     <ClInclude Include="util\MappedFile.h" />
     <ClInclude Include="util\Matrix4.h" />
+    <ClInclude Include="util\MemLogger.h" />
     <ClInclude Include="util\PerfTimer.h" />
     <ClInclude Include="util\Point.h" />
     <ClInclude Include="util\PolySpline.h" />
diff --git a/BeefySysLib/BeefySysLib_static.vcxproj.filters b/BeefySysLib/BeefySysLib_static.vcxproj.filters
index 9bc062c7..cbe3e70f 100644
--- a/BeefySysLib/BeefySysLib_static.vcxproj.filters
+++ b/BeefySysLib/BeefySysLib_static.vcxproj.filters
@@ -593,6 +593,9 @@
     <ClCompile Include="img\BMPData.cpp">
       <Filter>src\img</Filter>
     </ClCompile>
+    <ClCompile Include="util\MemLogger.cpp">
+      <Filter>src\util</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="Common.h">
@@ -913,6 +916,9 @@
     <ClInclude Include="img\BMPData.h">
       <Filter>src\img</Filter>
     </ClInclude>
+    <ClInclude Include="util\MemLogger.h">
+      <Filter>src\util</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <CustomBuild Include="third_party\libffi\i686-pc-cygwin\src\x86\win32.asm">
diff --git a/BeefySysLib/Common.cpp b/BeefySysLib/Common.cpp
index a8dcb36c..d37473de 100644
--- a/BeefySysLib/Common.cpp
+++ b/BeefySysLib/Common.cpp
@@ -660,7 +660,7 @@ void Beefy::ExactMinimalDoubleToStr(double d, char* str)
 
 static char* StbspCallback(char *buf, void *user, int len)
 {
-    ((String*)user)->Append(buf, len);
+    ((StringImpl*)user)->Append(buf, len);
     return buf;
 }
 
@@ -821,6 +821,12 @@ String Beefy::vformat(const char* fmt, va_list argPtr)
     BF_stbsp_vsprintfcb(StbspCallback, (void*)&str, buf, fmt, argPtr);
     return str;
 }
+
+void Beefy::vformat(StringImpl& str, const char* fmt, va_list argPtr)
+{	
+	char buf[STB_SPRINTF_MIN];
+	BF_stbsp_vsprintfcb(StbspCallback, (void*)&str, buf, fmt, argPtr);	
+}
 #endif
 
 String Beefy::StrFormat(const char* fmt ...)
diff --git a/BeefySysLib/Common.h b/BeefySysLib/Common.h
index 49a9c4c4..3cfa130c 100644
--- a/BeefySysLib/Common.h
+++ b/BeefySysLib/Common.h
@@ -195,6 +195,7 @@ uint64 BFGetTickCountMicro();
 uint64 BFGetTickCountMicroFast();
 
 extern String vformat(const char* fmt, va_list argPtr);
+extern void vformat(StringImpl& str, const char* fmt, va_list argPtr);
 extern String StrFormat(const char* fmt ...);
 void ExactMinimalFloatToStr(float f, char* str);
 void ExactMinimalDoubleToStr(double d, char* str);
diff --git a/BeefySysLib/util/MemLogger.cpp b/BeefySysLib/util/MemLogger.cpp
new file mode 100644
index 00000000..29af8db7
--- /dev/null
+++ b/BeefySysLib/util/MemLogger.cpp
@@ -0,0 +1,161 @@
+#include "MemLogger.h"
+
+USING_NS_BF;
+
+struct MemLogger_Header
+{
+public:
+	int mHead;
+	int mTail;
+	int mSize;
+};
+
+MemLogger::MemLogger()
+{	
+	mFileMap = NULL;
+	mMemBuffer = NULL;
+	mBufferSize = 0;
+	mTotalWriteSize = 0;	
+}
+
+MemLogger::~MemLogger()
+{
+	if (mMemBuffer != NULL)
+		::UnmapViewOfFile(mMemBuffer);
+	if (mFileMap != NULL)
+		::CloseHandle(mFileMap);
+}
+
+void MemLogger::Write(const void* ptr, int size)
+{
+	if (mMemBuffer == NULL)
+		return;
+	if (size == 0)
+		return;
+
+	int dataSize = mBufferSize - sizeof(MemLogger_Header);
+	void* dataPtr = (uint8*)mMemBuffer + sizeof(MemLogger_Header);
+
+	MemLogger_Header* header = (MemLogger_Header*)mMemBuffer;
+
+	bool wasWrapped = header->mHead < header->mTail;
+
+	int writeSize = BF_MIN(size, dataSize - header->mHead);
+	memcpy((char*)dataPtr + header->mHead, ptr, writeSize);
+	size -= writeSize;
+
+	header->mHead += writeSize;
+	while (header->mHead >= dataSize)	
+		header->mHead -= dataSize;	
+	
+	if (size > 0)
+	{		
+		int writeSize2 = BF_MIN(size, dataSize - header->mHead);
+		memcpy((char*)dataPtr + header->mHead, (char*)ptr + writeSize, writeSize2);
+		header->mHead += writeSize2;
+		while (header->mHead >= dataSize)
+			header->mHead -= dataSize;
+	}
+
+	mTotalWriteSize += writeSize;
+
+	if (mTotalWriteSize >= dataSize)
+	{
+		header->mTail = header->mHead + 1;
+		if (header->mTail > dataSize)
+			header->mTail -= dataSize;
+	}
+}
+
+bool Beefy::MemLogger::Create(const StringImpl& memName, int size)
+{
+	String sharedName = "MemLogger_" + memName;
+	HANDLE hMapFile = CreateFileMappingA(
+		INVALID_HANDLE_VALUE,    // use paging file
+		NULL,                    // default security
+		PAGE_READWRITE,          // read/write access
+		0,                       // maximum object size (high-order DWORD)
+		size,                // maximum object size (low-order DWORD)
+		sharedName.c_str());                 // name of mapping object
+
+	if (hMapFile == NULL)
+		return false;
+	
+	mMemBuffer = MapViewOfFile(hMapFile,   // handle to map object
+		FILE_MAP_ALL_ACCESS, // read/write permission
+		0,
+		0,
+		size);
+
+	if (mMemBuffer == NULL)
+		return false;
+
+	mBufferSize = size;
+
+	MemLogger_Header* header = (MemLogger_Header*)mMemBuffer;
+	header->mHead = 0;
+	header->mTail = 0;
+	header->mSize = size;
+	return true;
+}
+
+bool Beefy::MemLogger::Get(const StringImpl& memName, String& outStr)
+{
+	String sharedName = "MemLogger_" + memName;
+	HANDLE hMapFile = ::OpenFileMappingA(FILE_MAP_READ | FILE_MAP_WRITE, FALSE, sharedName.c_str());
+	if (hMapFile == NULL)
+		return false;
+
+	void* memPtr = MapViewOfFile(hMapFile,   // handle to map object
+		FILE_MAP_ALL_ACCESS, // read/write permission
+		0,
+		0,
+		sizeof(MemLogger_Header));
+
+	MemLogger_Header* header = (MemLogger_Header*)(memPtr);
+	int size = header->mSize;
+	UnmapViewOfFile(memPtr);
+
+	memPtr = MapViewOfFile(hMapFile,   // handle to map object
+		FILE_MAP_ALL_ACCESS, // read/write permission
+		0,
+		0,
+		size);
+
+	if (memPtr == NULL)
+		return false;	
+
+	::CloseHandle(hMapFile);
+
+	header = (MemLogger_Header*)(memPtr);
+	
+	int dataSize = header->mSize - sizeof(MemLogger_Header);
+	void* dataPtr = (uint8*)memPtr + sizeof(MemLogger_Header);
+
+	if (header->mHead >= header->mTail)
+	{
+		// Not wrapped around
+		outStr.Insert(outStr.mLength, (char*)dataPtr + header->mTail, header->mHead - header->mTail);
+	}
+	else
+	{
+		outStr.Insert(outStr.mLength, (char*)dataPtr + header->mTail, dataSize - header->mTail);
+		outStr.Insert(outStr.mLength, (char*)dataPtr, header->mHead);
+	}
+
+	return true;
+}
+
+void Beefy::MemLogger::Log(const char* fmt ...)
+{
+	if (mMemBuffer == NULL)
+		return;
+
+	StringT<4096> str;
+	va_list argList;
+	va_start(argList, fmt);
+	vformat(str, fmt, argList);
+	va_end(argList);
+
+	Write(str.c_str(), str.mLength);
+}
diff --git a/BeefySysLib/util/MemLogger.h b/BeefySysLib/util/MemLogger.h
new file mode 100644
index 00000000..bc505c31
--- /dev/null
+++ b/BeefySysLib/util/MemLogger.h
@@ -0,0 +1,28 @@
+#pragma once
+
+#include "../Common.h"
+
+NS_BF_BEGIN
+
+class MemLogger
+{
+public:
+	HANDLE mFileMap;
+	void* mMemBuffer;
+	int mBufferSize;
+	int mTotalWriteSize;
+
+public:
+	MemLogger();
+
+	~MemLogger();
+
+	bool Create(const StringImpl& memName, int size);
+	bool Get(const StringImpl& memName, String& outStr);
+	void Log(const char* fmt ...);
+	void Write(const void* ptr, int size);
+};
+
+
+
+NS_BF_END