Index: src/chext/DropMenuExt.cpp
===================================================================
diff -u -N -rebc7fabbd2d59f9a0f723ea480b5374cc393ec12 -r2f696d06139af4d0fab14dd1613507b66f5169cb
--- src/chext/DropMenuExt.cpp	(.../DropMenuExt.cpp)	(revision ebc7fabbd2d59f9a0f723ea480b5374cc393ec12)
+++ src/chext/DropMenuExt.cpp	(.../DropMenuExt.cpp)	(revision 2f696d06139af4d0fab14dd1613507b66f5169cb)
@@ -79,7 +79,7 @@
 	if(hWnd == nullptr)
 		return E_FAIL;
 
-	HRESULT hResult = ReadShellConfig();
+	HRESULT hResult = ShellExtensionVerifier::ReadShellConfig(m_piShellExtControl, m_tShellExtMenuConfig, eLocation_DragAndDropMenu);
 	LOG_HRESULT(m_spLog, hResult) << L"Read shell config";
 	if(SUCCEEDED(hResult))
 	{
@@ -216,40 +216,3 @@
 	ATLTRACE(_T("CDropMenuExt::HandleMenuMsg2(): uMsg = %lu, wParam = %lu, lParam = %lu\n"), uMsg, wParam, lParam);
 	return S_FALSE;
 }
-
-HRESULT CDropMenuExt::ReadShellConfig()
-{
-	try
-	{
-		HWND hWnd = ShellExtensionVerifier::VerifyShellExt(m_piShellExtControl);
-		if(hWnd == nullptr)
-			return E_FAIL;
-
-		// get cfg from ch
-		unsigned long ulSHMID = GetTickCount();
-		if(::SendMessage(hWnd, WM_GETCONFIG, eLocation_DragAndDropMenu, ulSHMID) != TRUE)
-		{
-			LOG_ERROR(m_spLog) << L"Failed to retrieve configuration from Copy Handler";
-			return E_FAIL;
-		}
-
-		std::wstring strSHMName = IPCSupport::GenerateSHMName(ulSHMID);
-
-		chcore::TSharedMemory tSharedMemory;
-		chcore::TString wstrData;
-		chcore::TConfig cfgShellExtData;
-
-		tSharedMemory.Open(strSHMName.c_str());
-		tSharedMemory.Read(wstrData);
-
-		cfgShellExtData.ReadFromString(wstrData);
-
-		m_tShellExtMenuConfig.ReadFromConfig(cfgShellExtData, _T("ShellExtCfg"));
-
-		return S_OK;
-	}
-	catch(...)
-	{
-		return E_FAIL;
-	}
-}
Index: src/chext/DropMenuExt.h
===================================================================
diff -u -N -rebc7fabbd2d59f9a0f723ea480b5374cc393ec12 -r2f696d06139af4d0fab14dd1613507b66f5169cb
--- src/chext/DropMenuExt.h	(.../DropMenuExt.h)	(revision ebc7fabbd2d59f9a0f723ea480b5374cc393ec12)
+++ src/chext/DropMenuExt.h	(.../DropMenuExt.h)	(revision 2f696d06139af4d0fab14dd1613507b66f5169cb)
@@ -57,9 +57,6 @@
 	STDMETHOD(HandleMenuMsg2)(UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT* plResult);
 
 protected:
-	HRESULT ReadShellConfig();
-
-protected:
 	IShellExtControl* m_piShellExtControl;
 
 	TShellExtData m_tShellExtData;
Index: src/chext/MenuExt.cpp
===================================================================
diff -u -N -rebc7fabbd2d59f9a0f723ea480b5374cc393ec12 -r2f696d06139af4d0fab14dd1613507b66f5169cb
--- src/chext/MenuExt.cpp	(.../MenuExt.cpp)	(revision ebc7fabbd2d59f9a0f723ea480b5374cc393ec12)
+++ src/chext/MenuExt.cpp	(.../MenuExt.cpp)	(revision 2f696d06139af4d0fab14dd1613507b66f5169cb)
@@ -81,7 +81,7 @@
 	if(!hWnd)
 		return S_OK;
 
-	HRESULT hResult = ReadShellConfig();
+	HRESULT hResult = ShellExtensionVerifier::ReadShellConfig(m_piShellExtControl, m_tShellExtMenuConfig, eLocation_ContextMenu);
 	LOG_HRESULT(m_spLog, hResult) << L"Read shell config";
 
 	if(SUCCEEDED(hResult))
@@ -368,40 +368,3 @@
 
 	return S_OK;
 }
-
-HRESULT CMenuExt::ReadShellConfig()
-{
-	try
-	{
-		HWND hWnd = ShellExtensionVerifier::VerifyShellExt(m_piShellExtControl);
-		if(hWnd == nullptr)
-			return E_FAIL;
-
-		// get cfg from ch
-		unsigned long ulSHMID = GetTickCount();
-		if(::SendMessage(hWnd, WM_GETCONFIG, eLocation_ContextMenu, ulSHMID) != TRUE)
-		{
-			LOG_ERROR(m_spLog) << L"Failed to retrieve configuration from Copy Handler";
-			return E_FAIL;
-		}
-
-		std::wstring strSHMName = IPCSupport::GenerateSHMName(ulSHMID);
-
-		chcore::TSharedMemory tSharedMemory;
-		chcore::TString wstrData;
-		chcore::TConfig cfgShellExtData;
-
-		tSharedMemory.Open(strSHMName.c_str());
-		tSharedMemory.Read(wstrData);
-
-		cfgShellExtData.ReadFromString(wstrData);
-
-		m_tShellExtMenuConfig.ReadFromConfig(cfgShellExtData, _T("ShellExtCfg"));
-
-		return S_OK;
-	}
-	catch(...)
-	{
-		return E_FAIL;
-	}
-}
Index: src/chext/MenuExt.h
===================================================================
diff -u -N -rebc7fabbd2d59f9a0f723ea480b5374cc393ec12 -r2f696d06139af4d0fab14dd1613507b66f5169cb
--- src/chext/MenuExt.h	(.../MenuExt.h)	(revision ebc7fabbd2d59f9a0f723ea480b5374cc393ec12)
+++ src/chext/MenuExt.h	(.../MenuExt.h)	(revision 2f696d06139af4d0fab14dd1613507b66f5169cb)
@@ -63,8 +63,6 @@
 protected:
 	HRESULT DrawMenuItem(LPDRAWITEMSTRUCT lpdis);
 
-	HRESULT ReadShellConfig();
-
 private:
 	TShellExtData m_tShellExtData;
 
Index: src/chext/ShellExtensionVerifier.cpp
===================================================================
diff -u -N -rebc7fabbd2d59f9a0f723ea480b5374cc393ec12 -r2f696d06139af4d0fab14dd1613507b66f5169cb
--- src/chext/ShellExtensionVerifier.cpp	(.../ShellExtensionVerifier.cpp)	(revision ebc7fabbd2d59f9a0f723ea480b5374cc393ec12)
+++ src/chext/ShellExtensionVerifier.cpp	(.../ShellExtensionVerifier.cpp)	(revision 2f696d06139af4d0fab14dd1613507b66f5169cb)
@@ -19,23 +19,28 @@
 #include "stdafx.h"
 #include "ShellExtensionVerifier.h"
 #include "Logger.h"
+#include "../libchcore/TSharedMemory.h"
+#include "../libchcore/TConfig.h"
+#include "../liblogger/TLogger.h"
+#include "../common/TShellExtMenuConfig.h"
+#include <stdlib.h>
 
 HWND ShellExtensionVerifier::VerifyShellExt(IShellExtControl* piShellExtControl)
 {
-	logger::TLoggerPtr rLogger = GetLogger(L"ShellExtVerifier");
+	logger::TLoggerPtr spLogger = GetLogger(L"ShellExtVerifier");
 
 	HRESULT hResult = IsShellExtEnabled(piShellExtControl);
 	if(FAILED(hResult) || hResult == S_FALSE)
 	{
-		LOG_DEBUG(rLogger) << L"Shell extension is disabled.";
+		LOG_DEBUG(spLogger) << L"Shell extension is disabled.";
 		return nullptr;
 	}
 
 	// find CH's window
 	HWND hWnd = ::FindWindow(_T("Copy Handler Wnd Class"), _T("Copy handler"));
 	if(!hWnd)
 	{
-		LOG_DEBUG(rLogger) << L"Cannot find Copy Handler's window.";
+		LOG_DEBUG(spLogger) << L"Cannot find Copy Handler's window.";
 		return nullptr;
 	}
 
@@ -57,3 +62,51 @@
 	
 	return S_FALSE;
 }
+
+HRESULT ShellExtensionVerifier::ReadShellConfig(IShellExtControl* piShellExtControl, TShellExtMenuConfig& tShellExtConfig, ELocation eLocation)
+{
+	logger::TLoggerPtr spLogger = GetLogger(L"ShellExtVerifier");
+	try
+	{
+		HWND hWnd = ShellExtensionVerifier::VerifyShellExt(piShellExtControl);
+		if(hWnd == nullptr)
+			return E_FAIL;
+
+		// generate a random number for naming shared memory
+		unsigned int uiSHMID = 0;
+		if(rand_s(&uiSHMID) != 0 || uiSHMID == 0)
+		{
+			LOG_WARNING(spLogger) << L"Failed to generate random number for shared memory naming. Falling back to tick count.";
+			uiSHMID = GetTickCount();
+		}
+
+		LOG_DEBUG(spLogger) << L"Requesting CH configuration. Shared memory identifier " << uiSHMID;
+
+		if(::SendMessage(hWnd, WM_GETCONFIG, eLocation, uiSHMID) != TRUE)
+		{
+			LOG_ERROR(spLogger) << L"Failed to retrieve configuration from Copy Handler";
+			return E_FAIL;
+		}
+
+		std::wstring strSHMName = IPCSupport::GenerateSHMName(uiSHMID);
+
+		chcore::TSharedMemory tSharedMemory;
+		chcore::TString wstrData;
+		chcore::TConfig cfgShellExtData;
+
+		tSharedMemory.Open(strSHMName.c_str());
+		tSharedMemory.Read(wstrData);
+
+		LOG_TRACE(spLogger) << L"Retrieved shell ext config: " << wstrData;
+
+		cfgShellExtData.ReadFromString(wstrData);
+
+		tShellExtConfig.ReadFromConfig(cfgShellExtData, _T("ShellExtCfg"));
+
+		return S_OK;
+	}
+	catch(...)
+	{
+		return E_FAIL;
+	}
+}
Index: src/chext/ShellExtensionVerifier.h
===================================================================
diff -u -N -rb79aca0d66b1084f230022efe39cc89307482e6d -r2f696d06139af4d0fab14dd1613507b66f5169cb
--- src/chext/ShellExtensionVerifier.h	(.../ShellExtensionVerifier.h)	(revision b79aca0d66b1084f230022efe39cc89307482e6d)
+++ src/chext/ShellExtensionVerifier.h	(.../ShellExtensionVerifier.h)	(revision 2f696d06139af4d0fab14dd1613507b66f5169cb)
@@ -20,12 +20,16 @@
 #define __SHELLEXTENSIONVERIFIER_H__
 
 #include "chext.h"
+#include "../common/ipcstructs.h"
 
+class TShellExtMenuConfig;
+
 class ShellExtensionVerifier
 {
 public:
 	static HWND VerifyShellExt(IShellExtControl* piShellExtControl);
 	static HRESULT IsShellExtEnabled(IShellExtControl* piShellExtControl);
+	static HRESULT ReadShellConfig(IShellExtControl* piShellExtControl, TShellExtMenuConfig& tShellExtConfig, ELocation eLocation);
 };
 
 #endif
Index: src/chext/StdAfx.h
===================================================================
diff -u -N -ra27d1acf1bda3c25b6dcce0d0eb0278009ce63ae -r2f696d06139af4d0fab14dd1613507b66f5169cb
--- src/chext/StdAfx.h	(.../StdAfx.h)	(revision a27d1acf1bda3c25b6dcce0d0eb0278009ce63ae)
+++ src/chext/StdAfx.h	(.../StdAfx.h)	(revision 2f696d06139af4d0fab14dd1613507b66f5169cb)
@@ -20,6 +20,7 @@
 #define __STDAFX_H__
 
 #define STRICT
+#define _CRT_RAND_S
 
 #include "../common/targetver.h"