diff --git a/base/ctf/msctf/range.cpp b/base/ctf/msctf/range.cpp
index 5b14f7eb3fb..15e2f3d9b6c 100644
--- a/base/ctf/msctf/range.cpp
+++ b/base/ctf/msctf/range.cpp
@@ -29,19 +29,20 @@ WINE_DEFAULT_DEBUG_CHANNEL(msctf);
 // CRange
 
 CRange::CRange(
-    _In_ CInputContext *pIC,
-    _In_ DWORD dwLockType,
-    _In_ IAnchor *pAnchorStart,
-    _In_ IAnchor *pAnchorEnd,
-    _In_ TfGravity gravity)
+    _In_ ITfContext *context,
+    _In_ ITextStoreACP *textstore,
+    _In_ DWORD lockType,
+    _In_ TfAnchor anchorStart,
+    _In_ TfAnchor anchorEnd
+)
+    : m_pContext(context)
+    , m_pTextStore(textstore)
+    , m_dwLockType(lockType)
+    , m_anchorStart(anchorStart)
+    , m_anchorEnd(anchorEnd)
+    , m_dwCookie(MAXDWORD)
+    , m_cRefs(1)
 {
-    m_dwLockType = dwLockType;
-    m_pAnchorStart = pAnchorStart;
-    m_pAnchorEnd = pAnchorEnd;
-    m_pInputContext = pIC;
-    m_dwCookie = MAXDWORD;
-    m_gravity = gravity;
-    m_cRefs = 1;
 }
 
 CRange::~CRange()
@@ -50,7 +51,8 @@ CRange::~CRange()
 
 CRange *CRange::_Clone()
 {
-    CRange *pRange = new(cicNoThrow) CRange(m_pInputContext, 0, m_pAnchorStart, m_pAnchorEnd, (TfGravity)2);
+    CRange *pRange = new(cicNoThrow) CRange(m_pContext, m_pTextStore, m_dwLockType,
+                                            m_anchorStart, m_anchorEnd);
     if (!pRange)
         return NULL;
     pRange->m_dwCookie = m_dwCookie;
@@ -72,6 +74,22 @@ HRESULT CRange::_CompareX(
     return E_NOTIMPL;
 }
 
+HRESULT CRange::TF_SELECTION_to_TS_SELECTION_ACP(const TF_SELECTION *tf, TS_SELECTION_ACP *tsAcp)
+{
+    if (!tf || !tsAcp || !tf->range)
+    {
+        ERR("E_INVALIDARG: %p, %p, %p\n", tf, tsAcp, tf->range);
+        return E_INVALIDARG;
+    }
+
+    CRange *This = static_cast<CRange *>(static_cast<ITfRangeACP *>(tf->range));
+    tsAcp->acpStart = This->m_anchorStart;
+    tsAcp->acpEnd = This->m_anchorEnd;
+    tsAcp->style.ase = static_cast<TsActiveSelEnd>(tf->style.ase);
+    tsAcp->style.fInterimChar = tf->style.fInterimChar;
+    return S_OK;
+}
+
 ////////////////////////////////////////////////////////////////////////////
 // ** IUnknown methods **
 
@@ -100,16 +118,19 @@ STDMETHODIMP CRange::QueryInterface(REFIID riid, void **ppvObj)
         return S_OK;
     }
 
+    ERR("E_NOINTERFACE: %s\n", wine_dbgstr_guid(&riid));
     return E_NOINTERFACE;
 }
 
 STDMETHODIMP_(ULONG) CRange::AddRef()
 {
+    TRACE("%p -> ()\n", this);
     return InterlockedIncrement(&m_cRefs);
 }
 
 STDMETHODIMP_(ULONG) CRange::Release()
 {
+    TRACE("%p -> ()\n", this);
     if (InterlockedDecrement(&m_cRefs) == 0)
     {
         delete this;
@@ -382,9 +403,17 @@ STDMETHODIMP CRange::UnadviseSink(
 ////////////////////////////////////////////////////////////////////////////
 
 EXTERN_C
-HRESULT Range_Constructor(ITfContext *context, ITextStoreACP *textstore, DWORD lockType, DWORD anchorStart, DWORD anchorEnd, ITfRange **ppOut)
+HRESULT
+Range_Constructor(ITfContext *context, ITextStoreACP *textstore,
+                  DWORD lockType, DWORD anchorStart, DWORD anchorEnd, ITfRange **ppOut)
 {
-    return E_NOTIMPL;
+    CRange *This = new(cicNoThrow) CRange(context, textstore, lockType,
+                                          (TfAnchor)anchorStart, (TfAnchor)anchorEnd);
+    if (!This)
+        return E_OUTOFMEMORY;
+
+    *ppOut = static_cast<ITfRangeACP *>(This);
+    return S_OK;
 }
 
 /* Internal conversion functions */
@@ -392,5 +421,5 @@ HRESULT Range_Constructor(ITfContext *context, ITextStoreACP *textstore, DWORD l
 EXTERN_C
 HRESULT TF_SELECTION_to_TS_SELECTION_ACP(const TF_SELECTION *tf, TS_SELECTION_ACP *tsAcp)
 {
-    return E_NOTIMPL;
+    return CRange::TF_SELECTION_to_TS_SELECTION_ACP(tf, tsAcp);
 }
diff --git a/base/ctf/msctf/range.h b/base/ctf/msctf/range.h
index c56795ad638..53cf847a80d 100644
--- a/base/ctf/msctf/range.h
+++ b/base/ctf/msctf/range.h
@@ -8,24 +8,25 @@ class CRange
     , public ITfSource
 {
 protected:
+    ITfContext *m_pContext;
+    ITextStoreACP *m_pTextStore;
     DWORD m_dwLockType;
-    IAnchor *m_pAnchorStart;
-    IAnchor *m_pAnchorEnd;
-    CInputContext *m_pInputContext;
+    TfAnchor m_anchorStart;
+    TfAnchor m_anchorEnd;
     DWORD m_dwCookie;
-    TfGravity m_gravity;
     LONG m_cRefs;
 
 public:
     CRange(
-        _In_ CInputContext *pIC,
-        _In_ DWORD dwLockType,
-        _In_ IAnchor *pAnchorStart,
-        _In_ IAnchor *pAnchorEnd,
-        _In_ TfGravity gravity);
-
+        _In_ ITfContext *context,
+        _In_ ITextStoreACP *textstore,
+        _In_ DWORD lockType,
+        _In_ TfAnchor anchorStart,
+        _In_ TfAnchor anchorEnd);
     virtual ~CRange();
 
+    static HRESULT TF_SELECTION_to_TS_SELECTION_ACP(const TF_SELECTION *tf, TS_SELECTION_ACP *tsAcp);
+
     // ** IUnknown methods **
     STDMETHODIMP QueryInterface(REFIID riid, void **ppvObj) override;
     STDMETHODIMP_(ULONG) AddRef() override;