new file mode 100644
--- /dev/null
+++ b/src/VisVim/Commands.cpp
@@ -0,0 +1,693 @@
+#include "stdafx.h"
+#include <comdef.h>	// For _bstr_t
+#include "VisVim.h"
+#include "Commands.h"
+#include "OleAut.h"
+
+#ifdef _DEBUG
+#define new DEBUG_NEW
+#undef THIS_FILE
+static char THIS_FILE[] = __FILE__;
+
+#endif
+
+
+// Change directory before opening file?
+#define CD_SOURCE		0	// Cd to source path
+#define CD_SOURCE_PARENT	1	// Cd to parent directory of source path
+#define CD_NONE			2	// No cd
+
+
+static BOOL g_bEnableVim = TRUE;	// Vim enabled
+static BOOL g_bDevStudioEditor = FALSE;	// Open file in Dev Studio editor simultaneously
+static int g_ChangeDir = CD_NONE;	// CD after file open?
+
+static void VimSetEnableState (BOOL bEnableState);
+static BOOL VimOpenFile (BSTR& FileName, long LineNr);
+static DISPID VimGetDispatchId (COleAutomationControl& VimOle, char* Method);
+static void VimErrDiag (COleAutomationControl& VimOle);
+static void VimChangeDir (COleAutomationControl& VimOle, DISPID DispatchId, BSTR& FileName);
+static void DebugMsg (char* Msg, char* Arg = NULL);
+
+
+/////////////////////////////////////////////////////////////////////////////
+// CCommands
+
+CCommands::CCommands ()
+{
+	// m_pApplication == NULL; M$ Code generation bug!!!
+	m_pApplication = NULL;
+	m_pApplicationEventsObj = NULL;
+	m_pDebuggerEventsObj = NULL;
+}
+
+CCommands::~CCommands ()
+{
+	ASSERT (m_pApplication != NULL);
+	if (m_pApplication)
+	{
+		m_pApplication->Release ();
+		m_pApplication = NULL;
+	}
+}
+
+void CCommands::SetApplicationObject (IApplication * pApplication)
+{
+	// This function assumes pApplication has already been AddRef'd
+	// for us, which CDSAddIn did in its QueryInterface call
+	// just before it called us.
+	m_pApplication = pApplication;
+	if (! m_pApplication)
+		return;
+
+	// Create Application event handlers
+	XApplicationEventsObj::CreateInstance (&m_pApplicationEventsObj);
+	if (! m_pApplicationEventsObj)
+	{
+		ReportInternalError ("XApplicationEventsObj::CreateInstance");
+		return;
+	}
+	m_pApplicationEventsObj->AddRef ();
+	m_pApplicationEventsObj->Connect (m_pApplication);
+	m_pApplicationEventsObj->m_pCommands = this;
+
+#ifdef NEVER
+	// Create Debugger event handler
+	CComPtr < IDispatch > pDebugger;
+	if (SUCCEEDED (m_pApplication->get_Debugger (&pDebugger))
+	    && pDebugger != NULL)
+	{
+		XDebuggerEventsObj::CreateInstance (&m_pDebuggerEventsObj);
+		m_pDebuggerEventsObj->AddRef ();
+		m_pDebuggerEventsObj->Connect (pDebugger);
+		m_pDebuggerEventsObj->m_pCommands = this;
+	}
+#endif
+
+	// Get settings from registry HKEY_CURRENT_USER\Software\Vim\VisVim
+	HKEY hAppKey = GetAppKey ("Vim");
+	if (hAppKey)
+	{
+		HKEY hSectionKey = GetSectionKey (hAppKey, "VisVim");
+		if (hSectionKey)
+		{
+			g_bEnableVim = GetRegistryInt (hSectionKey, "EnableVim",
+						       g_bEnableVim);
+			g_bDevStudioEditor = GetRegistryInt(hSectionKey,"DevStudioEditor",
+							    g_bDevStudioEditor);
+			g_ChangeDir = GetRegistryInt (hSectionKey, "ChangeDir",
+						      g_ChangeDir);
+			RegCloseKey (hSectionKey);
+		}
+		RegCloseKey (hAppKey);
+	}
+}
+
+void CCommands::UnadviseFromEvents ()
+{
+	ASSERT (m_pApplicationEventsObj != NULL);
+	if (m_pApplicationEventsObj)
+	{
+		m_pApplicationEventsObj->Disconnect (m_pApplication);
+		m_pApplicationEventsObj->Release ();
+		m_pApplicationEventsObj = NULL;
+	}
+
+#ifdef NEVER
+	if (m_pDebuggerEventsObj)
+	{
+		// Since we were able to connect to the Debugger events, we
+		// should be able to access the Debugger object again to
+		// unadvise from its events (thus the VERIFY_OK below--see
+		// stdafx.h).
+		CComPtr < IDispatch > pDebugger;
+		VERIFY_OK (m_pApplication->get_Debugger (&pDebugger));
+		ASSERT (pDebugger != NULL);
+		m_pDebuggerEventsObj->Disconnect (pDebugger);
+		m_pDebuggerEventsObj->Release ();
+		m_pDebuggerEventsObj = NULL;
+	}
+#endif
+}
+
+
+/////////////////////////////////////////////////////////////////////////////
+// Event handlers
+
+// Application events
+
+HRESULT CCommands::XApplicationEvents::BeforeBuildStart ()
+{
+	AFX_MANAGE_STATE (AfxGetStaticModuleState ());
+	return S_OK;
+}
+
+HRESULT CCommands::XApplicationEvents::BuildFinish (long nNumErrors, long nNumWarnings)
+{
+	AFX_MANAGE_STATE (AfxGetStaticModuleState ());
+	return S_OK;
+}
+
+HRESULT CCommands::XApplicationEvents::BeforeApplicationShutDown ()
+{
+	AFX_MANAGE_STATE (AfxGetStaticModuleState ());
+	return S_OK;
+}
+
+// The open document event handle is the place where the real interface work
+// is done.
+// Vim gets called from here.
+//
+HRESULT CCommands::XApplicationEvents::DocumentOpen (IDispatch * theDocument)
+{
+	AFX_MANAGE_STATE (AfxGetStaticModuleState ());
+
+	if (! g_bEnableVim)
+		// Vim not enabled or empty command line entered
+		return S_OK;
+
+	// First get the current file name and line number
+
+	// Get the document object
+	CComQIPtr < ITextDocument, &IID_ITextDocument > pDoc (theDocument);
+	if (! pDoc)
+		return S_OK;
+
+	BSTR FileName;
+	long LineNr = -1;
+
+	// Get the document name
+	if (FAILED (pDoc->get_FullName (&FileName)))
+		return S_OK;
+
+	LPDISPATCH pDispSel;
+
+	// Get a selection object dispatch pointer
+	if (SUCCEEDED (pDoc->get_Selection (&pDispSel)))
+	{
+		// Get the selection object
+		CComQIPtr < ITextSelection, &IID_ITextSelection > pSel (pDispSel);
+
+		if (pSel)
+			// Get the selection line number
+			pSel->get_CurrentLine (&LineNr);
+
+		pDispSel->Release ();
+	}
+
+	// Open the file in Vim and position to the current line
+	if (VimOpenFile (FileName, LineNr))
+	{
+		if (! g_bDevStudioEditor)
+		{
+			// Close the document in developer studio
+			CComVariant vSaveChanges = dsSaveChangesPrompt;
+			DsSaveStatus Saved;
+
+			pDoc->Close (vSaveChanges, &Saved);
+		}
+	}
+
+	// We're done here
+	SysFreeString (FileName);
+	return S_OK;
+}
+
+HRESULT CCommands::XApplicationEvents::BeforeDocumentClose (IDispatch * theDocument)
+{
+	AFX_MANAGE_STATE (AfxGetStaticModuleState ());
+	return S_OK;
+}
+
+HRESULT CCommands::XApplicationEvents::DocumentSave (IDispatch * theDocument)
+{
+	AFX_MANAGE_STATE (AfxGetStaticModuleState ());
+	return S_OK;
+}
+
+HRESULT CCommands::XApplicationEvents::NewDocument (IDispatch * theDocument)
+{
+	AFX_MANAGE_STATE (AfxGetStaticModuleState ());
+
+	if (! g_bEnableVim)
+		// Vim not enabled or empty command line entered
+		return S_OK;
+
+	// First get the current file name and line number
+
+	CComQIPtr < ITextDocument, &IID_ITextDocument > pDoc (theDocument);
+	if (! pDoc)
+		return S_OK;
+
+	BSTR FileName;
+	HRESULT hr;
+
+	hr = pDoc->get_FullName (&FileName);
+	if (FAILED (hr))
+		return S_OK;
+
+	// Open the file in Vim and position to the current line
+	if (VimOpenFile (FileName, 0))
+	{
+		if (! g_bDevStudioEditor)
+		{
+			// Close the document in developer studio
+			CComVariant vSaveChanges = dsSaveChangesPrompt;
+			DsSaveStatus Saved;
+
+			pDoc->Close (vSaveChanges, &Saved);
+		}
+	}
+
+	SysFreeString (FileName);
+	return S_OK;
+}
+
+HRESULT CCommands::XApplicationEvents::WindowActivate (IDispatch * theWindow)
+{
+	AFX_MANAGE_STATE (AfxGetStaticModuleState ());
+	return S_OK;
+}
+
+HRESULT CCommands::XApplicationEvents::WindowDeactivate (IDispatch * theWindow)
+{
+	AFX_MANAGE_STATE (AfxGetStaticModuleState ());
+	return S_OK;
+}
+
+HRESULT CCommands::XApplicationEvents::WorkspaceOpen ()
+{
+	AFX_MANAGE_STATE (AfxGetStaticModuleState ());
+	return S_OK;
+}
+
+HRESULT CCommands::XApplicationEvents::WorkspaceClose ()
+{
+	AFX_MANAGE_STATE (AfxGetStaticModuleState ());
+	return S_OK;
+}
+
+HRESULT CCommands::XApplicationEvents::NewWorkspace ()
+{
+	AFX_MANAGE_STATE (AfxGetStaticModuleState ());
+	return S_OK;
+}
+
+// Debugger event
+
+HRESULT CCommands::XDebuggerEvents::BreakpointHit (IDispatch * pBreakpoint)
+{
+	AFX_MANAGE_STATE (AfxGetStaticModuleState ());
+	return S_OK;
+}
+
+
+/////////////////////////////////////////////////////////////////////////////
+// VisVim dialog
+
+class CMainDialog : public CDialog
+{
+    public:
+	CMainDialog (CWnd * pParent = NULL);	// Standard constructor
+
+	//{{AFX_DATA(CMainDialog)
+	enum { IDD = IDD_ADDINMAIN };
+	int	m_ChangeDir;
+	BOOL	m_bDevStudioEditor;
+	//}}AFX_DATA
+
+	//{{AFX_VIRTUAL(CMainDialog)
+    protected:
+	virtual void DoDataExchange (CDataExchange * pDX);	// DDX/DDV support
+	//}}AFX_VIRTUAL
+
+    protected:
+	//{{AFX_MSG(CMainDialog)
+	afx_msg void OnEnable();
+	afx_msg void OnDisable();
+	//}}AFX_MSG
+	DECLARE_MESSAGE_MAP ()
+};
+
+CMainDialog::CMainDialog (CWnd * pParent /* =NULL */ )
+	: CDialog (CMainDialog::IDD, pParent)
+{
+	//{{AFX_DATA_INIT(CMainDialog)
+	m_ChangeDir = -1;
+	m_bDevStudioEditor = FALSE;
+	//}}AFX_DATA_INIT
+}
+
+void CMainDialog::DoDataExchange (CDataExchange * pDX)
+{
+	CDialog::DoDataExchange (pDX);
+	//{{AFX_DATA_MAP(CMainDialog)
+	DDX_Radio(pDX, IDC_CD_SOURCE_PATH, m_ChangeDir);
+	DDX_Check (pDX, IDC_DEVSTUDIO_EDITOR, m_bDevStudioEditor);
+	//}}AFX_DATA_MAP
+}
+
+BEGIN_MESSAGE_MAP (CMainDialog, CDialog)
+	//{{AFX_MSG_MAP(CMainDialog)
+	//}}AFX_MSG_MAP
+END_MESSAGE_MAP ()
+
+
+/////////////////////////////////////////////////////////////////////////////
+// CCommands methods
+
+STDMETHODIMP CCommands::VisVimDialog ()
+{
+	AFX_MANAGE_STATE (AfxGetStaticModuleState ());
+
+	// Use m_pApplication to access the Developer Studio Application
+	// object,
+	// and VERIFY_OK to see error strings in DEBUG builds of your add-in
+	// (see stdafx.h)
+
+	VERIFY_OK (m_pApplication->EnableModeless (VARIANT_FALSE));
+
+	CMainDialog Dlg;
+
+	Dlg.m_bDevStudioEditor = g_bDevStudioEditor;
+	Dlg.m_ChangeDir = g_ChangeDir;
+	if (Dlg.DoModal () == IDOK)
+	{
+		g_bDevStudioEditor = Dlg.m_bDevStudioEditor;
+		g_ChangeDir = Dlg.m_ChangeDir;
+
+		// Save settings to registry HKEY_CURRENT_USER\Software\Vim\VisVim
+		HKEY hAppKey = GetAppKey ("Vim");
+		if (hAppKey)
+		{
+			HKEY hSectionKey = GetSectionKey (hAppKey, "VisVim");
+			if (hSectionKey)
+			{
+				WriteRegistryInt (hSectionKey, "DevStudioEditor",
+						  g_bDevStudioEditor);
+				WriteRegistryInt (hSectionKey, "ChangeDir", g_ChangeDir);
+				RegCloseKey (hSectionKey);
+			}
+			RegCloseKey (hAppKey);
+		}
+	}
+
+	VERIFY_OK (m_pApplication->EnableModeless (VARIANT_TRUE));
+	return S_OK;
+}
+
+STDMETHODIMP CCommands::VisVimEnable ()
+{
+	AFX_MANAGE_STATE (AfxGetStaticModuleState ());
+	VimSetEnableState (true);
+	return S_OK;
+}
+
+STDMETHODIMP CCommands::VisVimDisable ()
+{
+	AFX_MANAGE_STATE (AfxGetStaticModuleState ());
+	VimSetEnableState (false);
+	return S_OK;
+}
+
+STDMETHODIMP CCommands::VisVimToggle ()
+{
+	AFX_MANAGE_STATE (AfxGetStaticModuleState ());
+	VimSetEnableState (! g_bEnableVim);
+	return S_OK;
+}
+
+STDMETHODIMP CCommands::VisVimLoad ()
+{
+	AFX_MANAGE_STATE (AfxGetStaticModuleState ());
+
+	// Use m_pApplication to access the Developer Studio Application object,
+	// and VERIFY_OK to see error strings in DEBUG builds of your add-in
+	// (see stdafx.h)
+
+	CComBSTR bStr;
+	// Define dispatch pointers for document and selection objects
+	CComPtr < IDispatch > pDispDoc, pDispSel;
+
+	// Get a document object dispatch pointer
+	VERIFY_OK (m_pApplication->get_ActiveDocument (&pDispDoc));
+	if (! pDispDoc)
+		return S_OK;
+
+	BSTR FileName;
+	long LineNr = -1;
+
+	// Get the document object
+	CComQIPtr < ITextDocument, &IID_ITextDocument > pDoc (pDispDoc);
+
+	if (! pDoc)
+		return S_OK;
+
+	// Get the document name
+	if (FAILED (pDoc->get_FullName (&FileName)))
+		return S_OK;
+
+	// Get a selection object dispatch pointer
+	if (SUCCEEDED (pDoc->get_Selection (&pDispSel)))
+	{
+		// Get the selection object
+		CComQIPtr < ITextSelection, &IID_ITextSelection > pSel (pDispSel);
+
+		if (pSel)
+			// Get the selection line number
+			pSel->get_CurrentLine (&LineNr);
+	}
+
+	// Open the file in Vim
+	VimOpenFile (FileName, LineNr);
+
+	SysFreeString (FileName);
+	return S_OK;
+}
+
+
+//
+// Here we do the actual processing and communication with Vim
+//
+
+// Set the enable state and save to registry
+//
+static void VimSetEnableState (BOOL bEnableState)
+{
+	g_bEnableVim = bEnableState;
+	HKEY hAppKey = GetAppKey ("Vim");
+	if (hAppKey)
+	{
+		HKEY hSectionKey = GetSectionKey (hAppKey, "VisVim");
+		if (hSectionKey)
+			WriteRegistryInt (hSectionKey, "EnableVim", g_bEnableVim);
+		RegCloseKey (hAppKey);
+	}
+}
+
+// Open the file 'FileName' in Vim and goto line 'LineNr'
+// 'FileName' is expected to contain an absolute DOS path including the drive
+// letter.
+// 'LineNr' must contain a valid line number or 0, e. g. for a new file
+//
+static BOOL VimOpenFile (BSTR& FileName, long LineNr)
+{
+
+	// OLE automation object for com. with Vim
+	// When the object goes out of scope, it's desctructor destroys the OLE connection;
+	// This is imortant to avoid blocking the object
+	// (in this memory corruption would be likely when terminating Vim
+	// while still running DevStudio).
+	// So keep this object local!
+	COleAutomationControl VimOle;
+
+	// :cd D:/Src2/VisVim/
+	//
+	// Get a dispatch id for the SendKeys method of Vim;
+	// enables connection to Vim if necessary
+	DISPID DispatchId;
+	DispatchId = VimGetDispatchId (VimOle, "SendKeys");
+	if (! DispatchId)
+		// OLE error, can't obtain dispatch id
+		goto OleError;
+
+	OLECHAR Buf[MAX_OLE_STR];
+	char FileNameTmp[MAX_OLE_STR];
+	char VimCmd[MAX_OLE_STR];
+	char *s, *p;
+
+	// Prepend CTRL-\ CTRL-N to exit insert mode
+	VimCmd[0] = 0x1c;
+	VimCmd[1] = 0x0e;
+	VimCmd[2] = 0;
+
+#ifdef SINGLE_WINDOW
+	// Update the current file in Vim if it has been modified.
+	// Disabled, because it could write the file when you don't want to.
+	sprintf (VimCmd + 2, ":up\n");
+#endif
+	if (! VimOle.Method (DispatchId, "s", TO_OLE_STR_BUF (VimCmd, Buf)))
+		goto OleError;
+
+	// Change Vim working directory to where the file is if desired
+	if (g_ChangeDir != CD_NONE)
+		VimChangeDir (VimOle, DispatchId, FileName);
+
+	// Make Vim open the file.
+	// In the filename convert all \ to /, put a \ before a space.
+	sprintf(VimCmd, ":drop ");
+	sprintf(FileNameTmp, "%S", (char *)FileName);
+	s = VimCmd + 6;
+	for (p = FileNameTmp; *p != '\0' && s < FileNameTmp + MAX_OLE_STR - 4;
+									  ++p)
+		if (*p == '\\')
+			*s++ = '/';
+		else
+		{
+			if (*p == ' ')
+				*s++ = '\\';
+			*s++ = *p;
+		}
+	*s++ = '\n';
+	*s = '\0';
+
+	if (! VimOle.Method (DispatchId, "s", TO_OLE_STR_BUF (VimCmd, Buf)))
+		goto OleError;
+
+	if (LineNr > 0)
+	{
+		// Goto line
+		sprintf (VimCmd, ":%d\n", LineNr);
+		if (! VimOle.Method (DispatchId, "s", TO_OLE_STR_BUF (VimCmd, Buf)))
+			goto OleError;
+	}
+
+	// Make Vim come to the foreground
+	if (! VimOle.Method ("SetForeground"))
+		VimOle.ErrDiag ();
+
+	// We're done
+	return true;
+
+    OleError:
+	// There was an OLE error
+	// Check if it's the "unknown class string" error
+	VimErrDiag (VimOle);
+	return false;
+}
+
+// Return the dispatch id for the Vim method 'Method'
+// Create the Vim OLE object if necessary
+// Returns a valid dispatch id or null on error
+//
+static DISPID VimGetDispatchId (COleAutomationControl& VimOle, char* Method)
+{
+	// Initialize Vim OLE connection if not already done
+	if (! VimOle.IsCreated ())
+	{
+		if (! VimOle.CreateObject ("Vim.Application"))
+			return NULL;
+	}
+
+	// Get the dispatch id for the SendKeys method.
+	// By doing this, we are checking if Vim is still there...
+	DISPID DispatchId = VimOle.GetDispatchId ("SendKeys");
+	if (! DispatchId)
+	{
+		// We can't get a dispatch id.
+		// This means that probably Vim has been terminated.
+		// Don't issue an error message here, instead
+		// destroy the OLE object and try to connect once more
+		//
+		// In fact, this should never happen, because the OLE aut. object
+		// should not be kept long enough to allow the user to terminate Vim
+		// to avoid memory corruption (why the heck is there no system garbage
+		// collection for those damned OLE memory chunks???).
+		VimOle.DeleteObject ();
+		if (! VimOle.CreateObject ("Vim.Application"))
+			// If this create fails, it's time for an error msg
+			return NULL;
+
+		if (! (DispatchId = VimOle.GetDispatchId ("SendKeys")))
+			// There is something wrong...
+			return NULL;
+	}
+
+	return DispatchId;
+}
+
+// Output an error message for an OLE error
+// Check on the classstring error, which probably means Vim wasn't registered.
+//
+static void VimErrDiag (COleAutomationControl& VimOle)
+{
+	SCODE sc = GetScode (VimOle.GetResult ());
+	if (sc == CO_E_CLASSSTRING)
+	{
+		char Buf[256];
+		sprintf (Buf, "There is no registered OLE automation server named "
+			 "\"Vim.Application\".\n"
+			 "Use the OLE-enabled version of Vim with VisVim and "
+			 "make sure to register Vim by running \"vim -register\".");
+		MessageBox (NULL, Buf, "OLE Error", MB_OK);
+	}
+	else
+		VimOle.ErrDiag ();
+}
+
+// Change directory to the directory the file 'FileName' is in or it's parent
+// directory according to the setting of the global 'g_ChangeDir':
+// 'FileName' is expected to contain an absolute DOS path including the drive
+// letter.
+//	CD_NONE
+//	CD_SOURCE_PATH
+//	CD_SOURCE_PARENT
+//
+static void VimChangeDir (COleAutomationControl& VimOle, DISPID DispatchId, BSTR& FileName)
+{
+	// Do a :cd first
+
+	// Get the path name of the file ("dir/")
+	CString StrFileName = FileName;
+	char Drive[_MAX_DRIVE];
+	char Dir[_MAX_DIR];
+	char DirUnix[_MAX_DIR * 2];
+	char *s, *t;
+
+	_splitpath (StrFileName, Drive, Dir, NULL, NULL);
+
+	// Convert to Unix path name format, escape spaces.
+	t = DirUnix;
+	for (s = Dir; *s; ++s)
+		if (*s == '\\')
+			*t++ = '/';
+		else
+		{
+			if (*s == ' ')
+				*t++ = '\\';
+			*t++ = *s;
+		}
+	*t = '\0';
+
+
+	// Construct the cd command; append /.. if cd to parent
+	// directory and not in root directory
+	OLECHAR Buf[MAX_OLE_STR];
+	char VimCmd[MAX_OLE_STR];
+
+	sprintf (VimCmd, ":cd %s%s%s\n", Drive, DirUnix,
+		 g_ChangeDir == CD_SOURCE_PARENT && DirUnix[1] ? ".." : "");
+	VimOle.Method (DispatchId, "s", TO_OLE_STR_BUF (VimCmd, Buf));
+}
+
+#ifdef _DEBUG
+// Print out a debug message
+//
+static void DebugMsg (char* Msg, char* Arg)
+{
+	char Buf[400];
+	sprintf (Buf, Msg, Arg);
+	AfxMessageBox (Buf);
+}
+#endif
+