diff --git a/Source/MFCDialog/CMakeLists.txt b/Source/MFCDialog/CMakeLists.txt
index af5223273..5064135b6 100644
--- a/Source/MFCDialog/CMakeLists.txt
+++ b/Source/MFCDialog/CMakeLists.txt
@@ -1,5 +1,6 @@
 SOURCE_FILES(SRCS 
 CMakeSetup.cpp
+MakeHelp.cpp
 CMakeSetup.rc
 CMakeSetupDialog.cpp
 PathDialog.cpp
diff --git a/Source/MFCDialog/CMakeSetup.dsp b/Source/MFCDialog/CMakeSetup.dsp
index 414adce92..f1320afd1 100644
--- a/Source/MFCDialog/CMakeSetup.dsp
+++ b/Source/MFCDialog/CMakeSetup.dsp
@@ -111,6 +111,10 @@ SOURCE=.\CMakeSetupDialog.cpp
 # End Source File
 # Begin Source File
 
+SOURCE=.\MakeHelp.cpp
+# End Source File
+# Begin Source File
+
 SOURCE=.\PathDialog.cpp
 # End Source File
 # Begin Source File
@@ -140,6 +144,10 @@ SOURCE=.\CMakeSetupDialog.h
 # End Source File
 # Begin Source File
 
+SOURCE=.\MakeHelp.h
+# End Source File
+# Begin Source File
+
 SOURCE=.\Resource.h
 # End Source File
 # Begin Source File
diff --git a/Source/MFCDialog/CMakeSetup.rc b/Source/MFCDialog/CMakeSetup.rc
index 49bc8ba47..0d799e83e 100644
--- a/Source/MFCDialog/CMakeSetup.rc
+++ b/Source/MFCDialog/CMakeSetup.rc
@@ -85,12 +85,12 @@ BEGIN
     DEFPUSHBUTTON   "OK",IDOK,178,7,50,14,WS_GROUP
 END
 
-IDD_CMakeSetupDialog_DIALOG DIALOGEX 0, 0, 389, 225
+IDD_CMakeSetupDialog_DIALOG DIALOGEX 0, 0, 389, 241
 STYLE WS_MINIMIZEBOX | WS_MAXIMIZEBOX | WS_POPUP | WS_VISIBLE | WS_CAPTION | 
     WS_SYSMENU | WS_THICKFRAME
 EXSTYLE WS_EX_APPWINDOW
 CAPTION "CMakeSetupDialog"
-FONT 8, "MS Sans Serif", 0, 0, 0x1
+FONT 8, "MS Sans Serif"
 BEGIN
     COMBOBOX        IDC_WhereSource,96,6,133,66,CBS_DROPDOWN | 
                     CBS_AUTOHSCROLL | WS_VSCROLL | WS_TABSTOP
@@ -98,21 +98,32 @@ BEGIN
     COMBOBOX        IDC_WhereBuild,96,26,133,68,CBS_DROPDOWN | 
                     CBS_AUTOHSCROLL | WS_VSCROLL | WS_TABSTOP
     PUSHBUTTON      "Browse...",IDC_BUTTON3,230,25,34,13
-    DEFPUSHBUTTON   "Configure",IDC_BuildProjects,88,202,67,15
-    PUSHBUTTON      "Cancel",IDCANCEL,220,201,67,15
+    DEFPUSHBUTTON   "Configure",IDC_BuildProjects,70,223,67,15
+    PUSHBUTTON      "Cancel",IDCANCEL,202,223,67,15
     LISTBOX         IDC_LIST2,15,55,356,122,LBS_OWNERDRAWVARIABLE | 
                     LBS_HASSTRINGS | LBS_NOINTEGRALHEIGHT | WS_VSCROLL | 
                     WS_HSCROLL
     RTEXT           "Where is the source code:",IDC_STATIC,6,7,86,9
     RTEXT           "Where to build the binaries:",IDC_STATIC,5,27,90,9
     GROUPBOX        "Cache Values",IDC_FRAME,9,43,369,141
-    CTEXT           "Right click on cache entries for additional options",
-                    IDC_MouseHelpCaption,106,189,156,8
-    LTEXT           "Static",IDC_CMAKE_VERSION,3,211,58,13,SS_CENTERIMAGE
-    PUSHBUTTON      "OK",IDC_OK,160,202,56,14
+    LTEXT           "Right click on a cache value for additional options and help.\nPress Configure to update and display new values in red.\nPress OK to generate selected build files and exit.",
+                    IDC_MouseHelpCaption,103,190,197,27
+    LTEXT           "Static",IDC_CMAKE_VERSION,3,227,52,13,SS_CENTERIMAGE
+    PUSHBUTTON      "OK",IDC_OK,142,223,56,14
     COMBOBOX        IDC_Generator,275,25,103,50,CBS_DROPDOWN | CBS_SORT | 
                     WS_VSCROLL | WS_TABSTOP
     LTEXT           "Build For:",IDC_GeneratorLabel,279,10,103,12
+    PUSHBUTTON      "Help",IDC_HELP_BUTTON,274,223,57,15
+END
+
+IDD_CMAKE_HELP_DIALOG DIALOG DISCARDABLE  0, 0, 365, 183
+STYLE DS_MODALFRAME | WS_POPUP | WS_CAPTION | WS_SYSMENU
+CAPTION "CMake Help"
+FONT 8, "MS Sans Serif"
+BEGIN
+    DEFPUSHBUTTON   "OK",IDOK,155,159,50,14
+    EDITTEXT        IDC_EDIT1,7,7,351,152,ES_MULTILINE | ES_READONLY | NOT 
+                    WS_BORDER
 END
 
 
@@ -178,6 +189,15 @@ BEGIN
     IDD_CMakeSetupDialog_DIALOG, DIALOG
     BEGIN
         RIGHTMARGIN, 388
+        BOTTOMMARGIN, 238
+    END
+
+    IDD_CMAKE_HELP_DIALOG, DIALOG
+    BEGIN
+        LEFTMARGIN, 7
+        RIGHTMARGIN, 358
+        TOPMARGIN, 7
+        BOTTOMMARGIN, 176
     END
 END
 #endif    // APSTUDIO_INVOKED
diff --git a/Source/MFCDialog/CMakeSetupDialog.cpp b/Source/MFCDialog/CMakeSetupDialog.cpp
index cca009d42..0d0e504b7 100644
--- a/Source/MFCDialog/CMakeSetupDialog.cpp
+++ b/Source/MFCDialog/CMakeSetupDialog.cpp
@@ -3,6 +3,7 @@
 
 #include "stdafx.h"
 #include "CMakeSetup.h"
+#include "MakeHelp.h"
 #include "PathDialog.h"
 #include "CMakeSetupDialog.h"
 #include "CMakeCommandLineInfo.h" 
@@ -86,7 +87,7 @@ CMakeSetupDialog::CMakeSetupDialog(const CMakeCommandLineInfo& cmdInfo,
   m_WhereSource = cmdInfo.m_WhereSource;
   m_WhereBuild = cmdInfo.m_WhereBuild;
   m_GeneratorChoiceString = _T("");
-  //}}AFX_DATA_INIT
+	//}}AFX_DATA_INIT
   // Note that LoadIcon does not require a subsequent DestroyIcon in Win32
   m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
   m_BuildPathChanged = false;
@@ -106,6 +107,7 @@ void CMakeSetupDialog::DoDataExchange(CDataExchange* pDX)
 {
   CDialog::DoDataExchange(pDX);
   //{{AFX_DATA_MAP(CMakeSetupDialog)
+	DDX_Control(pDX, IDC_HELP_BUTTON, m_HelpButton);
 	DDX_Control(pDX, IDC_Generator, m_GeneratorChoice);
 	DDX_Control(pDX, IDC_OK, m_OKButton);
 	DDX_Control(pDX, IDCANCEL, m_CancelButton);
@@ -137,8 +139,9 @@ BEGIN_MESSAGE_MAP(CMakeSetupDialog, CDialog)
 	ON_WM_SIZE()
   ON_WM_GETMINMAXINFO()
 	ON_BN_CLICKED(IDC_OK, OnOk)
-  ON_BN_CLICKED(IDCANCEL, OnCancel)
 	ON_CBN_EDITCHANGE(IDC_Generator, OnEditchangeGenerator)
+  ON_BN_CLICKED(IDCANCEL, OnCancel)
+	ON_BN_CLICKED(IDC_HELP_BUTTON, OnHelpButton)
 	//}}AFX_MSG_MAP
 END_MESSAGE_MAP()
 
@@ -605,14 +608,6 @@ void CMakeSetupDialog::FillCacheGUIFromCacheManager()
     }
   const cmCacheManager::CacheEntryMap &cache =
     cmCacheManager::GetInstance()->GetCacheMap();
-  if(cache.size() == 0)
-    {
-    m_OKButton.EnableWindow(false);
-    }
-  else
-    {
-    m_OKButton.EnableWindow(true);
-    }
 
   for(cmCacheManager::CacheEntryMap::const_iterator i = cache.begin();
       i != cache.end(); ++i)
@@ -670,6 +665,28 @@ void CMakeSetupDialog::FillCacheGUIFromCacheManager()
         break;
       }
     }
+  m_OKButton.EnableWindow(false);
+  if(cache.size() > 0)
+    {
+    bool enable = true;
+    items = m_CacheEntriesList.GetItems();
+    for(std::set<CPropertyItem*>::iterator i = items.begin();
+        i != items.end(); ++i)
+      {
+      CPropertyItem* item = *i;
+      if(item->m_NewValue)
+        {
+        // if one new value then disable to OK button
+        enable = false;
+        break;
+        }
+      }
+    if(enable)
+      {
+      m_OKButton.EnableWindow(true);
+      }
+    }
+
   // redraw the list
   m_CacheEntriesList.SetTopIndex(0);
   m_CacheEntriesList.Invalidate();
@@ -797,6 +814,12 @@ void CMakeSetupDialog::OnSize(UINT nType, int cx, int cy)
                             cRect.top + deltay, 
                             0, 0,
                             SWP_NOSIZE | SWP_NOZORDER);
+    m_HelpButton.GetWindowRect(&cRect);
+    this->ScreenToClient(&cRect);
+    m_HelpButton.SetWindowPos(&wndTop, cRect.left + deltax/2, 
+                              cRect.top + deltay, 
+                              0, 0,
+                              SWP_NOSIZE | SWP_NOZORDER);
     }
   
 }
@@ -972,3 +995,9 @@ int CMakeSetupDialog::CreateShortcut()
 
   return 0;
 }
+
+void CMakeSetupDialog::OnHelpButton() 
+{
+  CMakeHelp dialog;
+  dialog.DoModal();
+}
diff --git a/Source/MFCDialog/CMakeSetupDialog.h b/Source/MFCDialog/CMakeSetupDialog.h
index bef4dbc73..8c6c21059 100644
--- a/Source/MFCDialog/CMakeSetupDialog.h
+++ b/Source/MFCDialog/CMakeSetupDialog.h
@@ -36,6 +36,7 @@ protected:
 // Dialog Data
   //{{AFX_DATA(CMakeSetupDialog)
 	enum { IDD = IDD_CMakeSetupDialog_DIALOG };
+	CButton	m_HelpButton;
 	CComboBox	m_GeneratorChoice;
 	CButton	m_OKButton;
 	CButton	m_CancelButton;
@@ -89,6 +90,7 @@ protected:
   afx_msg void OnGetMinMaxInfo( MINMAXINFO FAR* lpMMI );
 	afx_msg void OnOk();
 	afx_msg void OnEditchangeGenerator();
+	afx_msg void OnHelpButton();
 	//}}AFX_MSG
   DECLARE_MESSAGE_MAP()
     
diff --git a/Source/MFCDialog/MakeHelp.cpp b/Source/MFCDialog/MakeHelp.cpp
new file mode 100644
index 000000000..5c022eefe
--- /dev/null
+++ b/Source/MFCDialog/MakeHelp.cpp
@@ -0,0 +1,43 @@
+// MakeHelp.cpp : implementation file
+//
+
+#include "stdafx.h"
+#include "cmakesetup.h"
+#include "MakeHelp.h"
+
+#ifdef _DEBUG
+#define new DEBUG_NEW
+#undef THIS_FILE
+static char THIS_FILE[] = __FILE__;
+#endif
+
+/////////////////////////////////////////////////////////////////////////////
+// CMakeHelp dialog
+
+
+CMakeHelp::CMakeHelp(CWnd* pParent /*=NULL*/)
+	: CDialog(CMakeHelp::IDD, pParent)
+{
+	//{{AFX_DATA_INIT(CMakeHelp)
+	m_HelpMessage = _T("CMake is used to configure and generate build files for software projects.   The basic steps for configuring a project are as follows:\r\n\r\n1. Select the source directory for the project.  This should contain the CMakeLists.txt files for the project.\r\n\r\n2. Select the build directory for the project.   This is the directory where the project will be built.  It can be the same or a different directory than the source directory.   For easy clean up, a separate build directory is recommended.  CMake will create the directory if it does not exist.\r\n\r\n3. Once the source and binary directories are selected, it is time to press the Configure button.  This will cause CMake to read all of the input files and discover all the variables used by the project.   The first time a variable is displayed it will be in Red.   Users should inspect red variables making sure the values are correct.   For some projects the Configure process can be iterative, so continue to press the Configure button until there are no longer red entries.\r\n\r\n4. Once there are no longer red entries, you should click the OK button.  This will write the build files to the build directory and exit CMake.");
+	//}}AFX_DATA_INIT
+}
+
+
+void CMakeHelp::DoDataExchange(CDataExchange* pDX)
+{
+	CDialog::DoDataExchange(pDX);
+	//{{AFX_DATA_MAP(CMakeHelp)
+	DDX_Text(pDX, IDC_EDIT1, m_HelpMessage);
+	//}}AFX_DATA_MAP
+}
+
+
+BEGIN_MESSAGE_MAP(CMakeHelp, CDialog)
+	//{{AFX_MSG_MAP(CMakeHelp)
+		// NOTE: the ClassWizard will add message map macros here
+	//}}AFX_MSG_MAP
+END_MESSAGE_MAP()
+
+/////////////////////////////////////////////////////////////////////////////
+// CMakeHelp message handlers
diff --git a/Source/MFCDialog/MakeHelp.h b/Source/MFCDialog/MakeHelp.h
new file mode 100644
index 000000000..27f076c80
--- /dev/null
+++ b/Source/MFCDialog/MakeHelp.h
@@ -0,0 +1,46 @@
+#if !defined(AFX_MAKEHELP_H__DD327AED_1E65_43E8_A605_0933065D1757__INCLUDED_)
+#define AFX_MAKEHELP_H__DD327AED_1E65_43E8_A605_0933065D1757__INCLUDED_
+
+#if _MSC_VER > 1000
+#pragma once
+#endif // _MSC_VER > 1000
+// MakeHelp.h : header file
+//
+
+/////////////////////////////////////////////////////////////////////////////
+// CMakeHelp dialog
+
+class CMakeHelp : public CDialog
+{
+// Construction
+public:
+	CMakeHelp(CWnd* pParent = NULL);   // standard constructor
+
+// Dialog Data
+	//{{AFX_DATA(CMakeHelp)
+	enum { IDD = IDD_CMAKE_HELP_DIALOG };
+	CString	m_HelpMessage;
+	//}}AFX_DATA
+
+
+// Overrides
+	// ClassWizard generated virtual function overrides
+	//{{AFX_VIRTUAL(CMakeHelp)
+	protected:
+	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
+	//}}AFX_VIRTUAL
+
+// Implementation
+protected:
+
+	// Generated message map functions
+	//{{AFX_MSG(CMakeHelp)
+		// NOTE: the ClassWizard will add member functions here
+	//}}AFX_MSG
+	DECLARE_MESSAGE_MAP()
+};
+
+//{{AFX_INSERT_LOCATION}}
+// Microsoft Visual C++ will insert additional declarations immediately before the previous line.
+
+#endif // !defined(AFX_MAKEHELP_H__DD327AED_1E65_43E8_A605_0933065D1757__INCLUDED_)
diff --git a/Source/MFCDialog/resource.h b/Source/MFCDialog/resource.h
index 56200d042..be740c4a3 100644
--- a/Source/MFCDialog/resource.h
+++ b/Source/MFCDialog/resource.h
@@ -9,6 +9,7 @@
 #define IDD_CMakeSetupDialog_DIALOG     102
 #define IDS_CREATESHORTCUT              102
 #define IDR_MAINFRAME                   128
+#define IDD_CMAKE_HELP_DIALOG           133
 #define IDC_WhereSource                 1001
 #define IDC_BUTTON2                     1002
 #define IDC_WhereBuild                  1003
@@ -22,14 +23,16 @@
 #define IDC_OK                          1018
 #define IDC_Generator                   1019
 #define IDC_GeneratorLabel              1020
+#define IDC_HELP_BUTTON                 1021
+#define IDC_EDIT1                       1025
 
 // Next default values for new objects
 // 
 #ifdef APSTUDIO_INVOKED
 #ifndef APSTUDIO_READONLY_SYMBOLS
-#define _APS_NEXT_RESOURCE_VALUE        133
+#define _APS_NEXT_RESOURCE_VALUE        134
 #define _APS_NEXT_COMMAND_VALUE         32771
-#define _APS_NEXT_CONTROL_VALUE         1021
+#define _APS_NEXT_CONTROL_VALUE         1026
 #define _APS_NEXT_SYMED_VALUE           102
 #endif
 #endif