diff --git a/base/shell/explorer/explorer.cpp b/base/shell/explorer/explorer.cpp
index 140a1e93ffa..9f9d6d1ca39 100644
--- a/base/shell/explorer/explorer.cpp
+++ b/base/shell/explorer/explorer.cpp
@@ -49,6 +49,31 @@ static VOID InitializeAtlModule(HINSTANCE hInstance, BOOL bInitialize)
     }
 }
 
+static void
+InitializeServerAdminUI()
+{
+    HKEY hKey = SHGetShellKey(SHKEY_Root_HKCU | SHKEY_Key_Explorer, L"Advanced", TRUE);
+    if (!hKey)
+        return;
+
+    DWORD value, size = sizeof(value), type;
+    DWORD error = SHGetValueW(hKey, NULL, L"ServerAdminUI", &type, &value, &size);
+    if (error || type != REG_DWORD || size != sizeof(value))
+    {
+        // The value doesn't exist or is invalid, calculate and apply a default value
+        value = IsOS(OS_ANYSERVER) && IsUserAnAdmin();
+        SHSetValueW(hKey, NULL, L"ServerAdminUI", REG_DWORD, &value, sizeof(value));
+        if (value)
+        {
+            // TODO: Apply registry tweaks with RegInstallW; RegServerAdmin in the REGINST resource in shell32.
+            #if !ROSPOLICY_SHELL_NODEFKEYBOARDCUES
+            SystemParametersInfo(SPI_SETKEYBOARDCUES, 0, IntToPtr(TRUE), SPIF_SENDCHANGE | SPIF_UPDATEINIFILE);
+            #endif
+        }
+    }
+    RegCloseKey(hKey);
+}
+
 #if !WIN7_DEBUG_MODE
 static BOOL
 SetShellReadyEvent(IN LPCWSTR lpEventName)
@@ -179,6 +204,8 @@ StartWithDesktop(IN HINSTANCE hInstance)
     /* Initialize CLSID_ShellWindows class */
     _WinList_Init();
 
+    InitializeServerAdminUI();
+
     CComPtr<ITrayWindow> Tray;
     CreateTrayWindow(&Tray);
 
diff --git a/dll/cpl/sysdm/advanced.c b/dll/cpl/sysdm/advanced.c
index baef06a68df..ba652e14dba 100644
--- a/dll/cpl/sysdm/advanced.c
+++ b/dll/cpl/sysdm/advanced.c
@@ -9,8 +9,8 @@
  */
 
 #include "precomp.h"
-#define WIN32_NO_STATUS
-#include "pstypes.h" /* SharedUserData */
+#define NTOS_MODE_USER
+#include <ndk/pstypes.h> /* For SharedUserData */
 
 static TCHAR BugLink[] = _T("http://jira.reactos.org/");
 static TCHAR ReportAsWorkstationKey[] = _T("SYSTEM\\CurrentControlSet\\Control\\ReactOS\\Settings\\Version");
@@ -56,7 +56,7 @@ OnInitSysSettingsDialog(HWND hwndDlg)
     DWORD dwVal = 0;
     DWORD dwType = REG_DWORD;
     DWORD cbData = sizeof(DWORD);
-    BOOL ReportAsWorkstation = SharedUserData->NtProductType == VER_NT_WORKSTATION;
+    BOOL ReportAsWorkstation = SharedUserData->NtProductType == NtProductWinNt;
 
     if (RegOpenKeyEx(HKEY_LOCAL_MACHINE,
                      ReportAsWorkstationKey,
@@ -71,7 +71,7 @@ OnInitSysSettingsDialog(HWND hwndDlg)
                             (LPBYTE)&dwVal,
                             &cbData) == ERROR_SUCCESS)
         {
-            if (cbData == sizeof(DWORD))
+            if (dwType == REG_DWORD && cbData == sizeof(DWORD))
                 ReportAsWorkstation = dwVal != FALSE;
         }
 
diff --git a/dll/ntdll/rtl/version.c b/dll/ntdll/rtl/version.c
index 63f94592f88..df567251977 100644
--- a/dll/ntdll/rtl/version.c
+++ b/dll/ntdll/rtl/version.c
@@ -53,11 +53,11 @@ SetRosSpecificInfo(IN OUT PRTL_OSVERSIONINFOEXW VersionInformation)
             (kvpInfo->Type == REG_DWORD) &&
             (kvpInfo->DataLength == sizeof(ULONG)))
         {
-            ULONG IsWorkstation = SharedUserData->NtProductType == NtProductWinNt;
-            ULONG ReportAsWorkstation = (*(PULONG)kvpInfo->Data) != 0;
+            BOOLEAN IsWorkstation = SharedUserData->NtProductType == NtProductWinNt;
+            BOOLEAN ReportAsWorkstation = (*(PULONG)kvpInfo->Data) != 0;
             if (IsWorkstation != ReportAsWorkstation)
             {
-                g_ReportProductType = ReportAsWorkstation ? NtProductWinNt : NtProductServer;
+                g_ReportProductType = ReportAsWorkstation ? VER_NT_WORKSTATION : VER_NT_SERVER;
             }
         }
 
@@ -73,7 +73,7 @@ SetRosSpecificInfo(IN OUT PRTL_OSVERSIONINFOEXW VersionInformation)
     }
     else
     {
-        g_ReportProductType = -1;
+        g_ReportProductType = -1; /* No override, caller gets the real value */
     }
 }
 
diff --git a/dll/win32/browseui/shellbrowser.cpp b/dll/win32/browseui/shellbrowser.cpp
index 07718df108a..7303e25540b 100644
--- a/dll/win32/browseui/shellbrowser.cpp
+++ b/dll/win32/browseui/shellbrowser.cpp
@@ -907,27 +907,18 @@ HRESULT CShellBrowser::CreateRelativeBrowsePIDL(LPCITEMIDLIST relative, UINT Sbs
 
 HRESULT CShellBrowser::BrowseToPIDL(LPCITEMIDLIST pidl, long flags)
 {
+    // Called by shell view to browse to new folder
+    // also called by explorer band to navigate to new folder
     CComPtr<IShellFolder>   newFolder;
     FOLDERSETTINGS          newFolderSettings = m_deffoldersettings.FolderSettings;
-    HRESULT                 hResult;
-    CLSID                   clsid;
-    BOOL                    HasIconViewType;
 
-    // called by shell view to browse to new folder
-    // also called by explorer band to navigate to new folder
-    hResult = SHBindToFolder(pidl, &newFolder);
-    if (FAILED_UNEXPECTEDLY(hResult))
-        return hResult;
-    // HACK & FIXME: Get view mode from shellbag when fully implemented.
-    IUnknown_GetClassID(newFolder, &clsid);
-    HasIconViewType = clsid == CLSID_MyComputer || clsid == CLSID_ControlPanel ||
-                      clsid == CLSID_ShellDesktop;
+    HRESULT hr = SHBindToFolder(pidl, &newFolder);
+    if (FAILED_UNEXPECTEDLY(hr))
+        return hr;
 
-    if (HasIconViewType)
-        newFolderSettings.ViewMode = FVM_ICON;
-    hResult = BrowseToPath(newFolder, pidl, &newFolderSettings, flags);
-    if (FAILED_UNEXPECTEDLY(hResult))
-        return hResult;
+    hr = BrowseToPath(newFolder, pidl, &newFolderSettings, flags);
+    if (FAILED_UNEXPECTEDLY(hr))
+        return hr;
     return S_OK;
 }
 
@@ -1116,8 +1107,22 @@ HRESULT CShellBrowser::BrowseToPath(IShellFolder *newShellFolder,
     absolutePIDL = fCurrentDirectoryPIDL;
 
     // create view window
-    hResult = newShellView->CreateViewWindow(saveCurrentShellView, folderSettings,
-        this, &shellViewWindowBounds, &newShellViewWindow);
+    SHELLVIEWID vid;
+    SV2CVW2_PARAMS cvw2 = { sizeof(cvw2), saveCurrentShellView, folderSettings, this, &shellViewWindowBounds, NULL };
+
+    CComPtr<IShellView2> newShellView2;
+    if (SUCCEEDED(newShellView->QueryInterface(IID_PPV_ARG(IShellView2, &newShellView2))))
+    {
+        if (SUCCEEDED(newShellView2->GetView(&vid, SV2GV_DEFAULTVIEW)))
+            cvw2.pvid = &vid;
+        hResult = newShellView2->CreateViewWindow2(&cvw2);
+    }
+    else
+    {
+        hResult = newShellView->CreateViewWindow(cvw2.psvPrev, cvw2.pfs, this, cvw2.prcView, &cvw2.hwndView);
+    }
+    newShellViewWindow = cvw2.hwndView;
+
     if (FAILED_UNEXPECTEDLY(hResult) || newShellViewWindow == NULL)
     {
         fCurrentShellView = saveCurrentShellView;
diff --git a/dll/win32/shell32/CDefView.cpp b/dll/win32/shell32/CDefView.cpp
index 90f9a6331fd..086cd348812 100644
--- a/dll/win32/shell32/CDefView.cpp
+++ b/dll/win32/shell32/CDefView.cpp
@@ -218,6 +218,10 @@ static inline COLORREF GetViewColor(COLORREF Clr, UINT SysFallback)
     return Clr != CLR_INVALID ? Clr : GetSysColor(SysFallback);
 }
 
+#define VID_Default ( *(const SHELLVIEWID*)&IID_CDefView )
+extern HRESULT ShellViewIdToFolderViewMode(const SHELLVIEWID *pVid);
+extern const SHELLVIEWID* FolderViewModeToShellViewId(UINT FVM);
+
 class CDefView :
     public CWindowImpl<CDefView, CWindow, CControlWinTraits>,
     public CComObjectRootEx<CComMultiThreadModelNoCS>,
@@ -373,6 +377,11 @@ public:
         return 0;
     }
 
+    static inline bool IsSupportedFolderViewMode(int Mode)
+    {
+        return Mode >= FVM_FIRST && Mode <= FVM_DETAILS; // We don't support Tile nor Thumbstrip
+    }
+
     // *** IOleWindow methods ***
     STDMETHOD(GetWindow)(HWND *lphwnd) override;
     STDMETHOD(ContextSensitiveHelp)(BOOL fEnterMode) override;
@@ -391,7 +400,7 @@ public:
     STDMETHOD(GetItemObject)(UINT uItem, REFIID riid, void **ppv) override;
 
     // *** IShellView2 methods ***
-    STDMETHOD(GetView)(SHELLVIEWID *view_guid, ULONG view_type) override;
+    STDMETHOD(GetView)(SHELLVIEWID *pVid, ULONG view_type) override;
     STDMETHOD(CreateViewWindow2)(LPSV2CVW2_PARAMS view_params) override;
     STDMETHOD(HandleRename)(LPCITEMIDLIST pidl) override;
     STDMETHOD(SelectAndPositionItem)(LPCITEMIDLIST item, UINT flags, POINT *point) override;
@@ -842,10 +851,7 @@ LRESULT CDefView::OnUpdateStatusbar(UINT uMsg, WPARAM wParam, LPARAM lParam, BOO
 // creates the list view window
 BOOL CDefView::CreateList()
 {
-    HRESULT hr;
     DWORD dwStyle, dwExStyle, ListExStyle;
-    UINT ViewMode;
-
     TRACE("%p\n", this);
 
     dwStyle = WS_TABSTOP | WS_VISIBLE | WS_CHILDWINDOW | WS_CLIPSIBLINGS | WS_CLIPCHILDREN |
@@ -868,16 +874,6 @@ BOOL CDefView::CreateList()
 #endif
     }
 
-    ViewMode = m_FolderSettings.ViewMode;
-    hr = _DoFolderViewCB(SFVM_DEFVIEWMODE, 0, (LPARAM)&ViewMode);
-    if (SUCCEEDED(hr))
-    {
-        if (ViewMode >= FVM_FIRST && ViewMode <= FVM_LAST)
-            m_FolderSettings.ViewMode = ViewMode;
-        else
-            ERR("Ignoring invalid ViewMode from SFVM_DEFVIEWMODE: %u (was: %u)\n", ViewMode, m_FolderSettings.ViewMode);
-    }
-
     switch (m_FolderSettings.ViewMode)
     {
         case FVM_ICON:
@@ -3605,7 +3601,7 @@ FOLDERVIEWMODE CDefView::GetDefaultViewMode()
 {
     FOLDERVIEWMODE mode = ((m_FolderSettings.fFlags & FWF_DESKTOP) || !IsOS(OS_SERVERADMINUI)) ? FVM_ICON : FVM_DETAILS;
     FOLDERVIEWMODE temp = mode;
-    if (SUCCEEDED(_DoFolderViewCB(SFVM_DEFVIEWMODE, 0, (LPARAM)&temp)) && temp >= FVM_FIRST && temp <= FVM_LAST)
+    if (SUCCEEDED(_DoFolderViewCB(SFVM_DEFVIEWMODE, 0, (LPARAM)&temp)) && IsSupportedFolderViewMode(temp))
         mode = temp;
     return mode;
 }
@@ -3812,10 +3808,23 @@ HRESULT STDMETHODCALLTYPE CDefView::SelectAndPositionItems(UINT cidl, PCUITEMID_
 
 // IShellView2 implementation
 
-HRESULT STDMETHODCALLTYPE CDefView::GetView(SHELLVIEWID *view_guid, ULONG view_type)
+HRESULT STDMETHODCALLTYPE CDefView::GetView(SHELLVIEWID *pVid, ULONG view_type)
 {
-    FIXME("(%p)->(%p, %lu) stub\n", this, view_guid, view_type);
-    return E_NOTIMPL;
+    if (view_type == SV2GV_DEFAULTVIEW)
+    {
+        *pVid = VID_Default;
+        return S_OK;
+    }
+    if (view_type == SV2GV_CURRENTVIEW)
+        view_type = m_FolderSettings.ViewMode;
+    if ((int)view_type < 0)
+        return E_UNEXPECTED;
+
+    view_type += FVM_FIRST;
+    if (!IsSupportedFolderViewMode(view_type))
+        return E_INVALIDARG;
+    *pVid = *FolderViewModeToShellViewId(view_type);
+    return S_OK;
 }
 
 HRESULT STDMETHODCALLTYPE CDefView::CreateViewWindow2(LPSV2CVW2_PARAMS view_params)
@@ -3844,9 +3853,6 @@ HRESULT STDMETHODCALLTYPE CDefView::CreateViewWindow3(IShellBrowser *psb, IShell
     if (view_flags & ~SUPPORTED_SV3CVW3)
         FIXME("unsupported view flags 0x%08x\n", view_flags & ~SUPPORTED_SV3CVW3);
 
-    if (mode == FVM_AUTO)
-        mode = GetDefaultViewMode();
-
     /* Set up the member variables */
     m_pShellBrowser = psb;
     m_FolderSettings.ViewMode = mode;
@@ -3854,23 +3860,23 @@ HRESULT STDMETHODCALLTYPE CDefView::CreateViewWindow3(IShellBrowser *psb, IShell
 
     if (view_id)
     {
-        if (IsEqualIID(*view_id, VID_LargeIcons))
-            m_FolderSettings.ViewMode = FVM_ICON;
-        else if (IsEqualIID(*view_id, VID_SmallIcons))
-            m_FolderSettings.ViewMode = FVM_SMALLICON;
-        else if (IsEqualIID(*view_id, VID_List))
-            m_FolderSettings.ViewMode = FVM_LIST;
-        else if (IsEqualIID(*view_id, VID_Details))
-            m_FolderSettings.ViewMode = FVM_DETAILS;
-        else if (IsEqualIID(*view_id, VID_Thumbnails))
-            m_FolderSettings.ViewMode = FVM_THUMBNAIL;
-        else if (IsEqualIID(*view_id, VID_Tile))
-            m_FolderSettings.ViewMode = FVM_TILE;
-        else if (IsEqualIID(*view_id, VID_ThumbStrip))
-            m_FolderSettings.ViewMode = FVM_THUMBSTRIP;
+        FOLDERVIEWMODE temp = (FOLDERVIEWMODE)ShellViewIdToFolderViewMode(view_id);
+        if (IsSupportedFolderViewMode(temp))
+            mode = temp;
+        else if (*view_id == VID_Default)
+            mode = FVM_AUTO;
         else
             FIXME("Ignoring unrecognized VID %s\n", debugstr_guid(view_id));
     }
+    if (mode == FVM_AUTO)
+        m_FolderSettings.ViewMode = GetDefaultViewMode();
+
+    if (!IsSupportedFolderViewMode(m_FolderSettings.ViewMode))
+    {
+        ERR("Ignoring %s FVM %u\n", FolderViewModeToShellViewId(m_FolderSettings.ViewMode)
+            ? "unsupported" : "invalid", m_FolderSettings.ViewMode);
+        m_FolderSettings.ViewMode = FVM_ICON;
+    }
     const UINT requestedViewMode = m_FolderSettings.ViewMode;
 
     /* Get our parent window */
diff --git a/dll/win32/shell32/CDefViewUtil.cpp b/dll/win32/shell32/CDefViewUtil.cpp
index 6e4930c3340..8d7e03f90f6 100644
--- a/dll/win32/shell32/CDefViewUtil.cpp
+++ b/dll/win32/shell32/CDefViewUtil.cpp
@@ -9,6 +9,38 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(shell);
 
+HRESULT
+ShellViewIdToFolderViewMode(const SHELLVIEWID *pVid)
+{
+    if (IsEqualIID(*pVid, VID_LargeIcons))
+        return FVM_ICON;
+    else if (IsEqualIID(*pVid, VID_SmallIcons))
+        return FVM_SMALLICON;
+    else if (IsEqualIID(*pVid, VID_List))
+        return FVM_LIST;
+    else if (IsEqualIID(*pVid, VID_Details))
+        return FVM_DETAILS;
+    else if (IsEqualIID(*pVid, VID_Thumbnails))
+        return FVM_THUMBNAIL;
+    else if (IsEqualIID(*pVid, VID_Tile))
+        return FVM_TILE;
+    else if (IsEqualIID(*pVid, VID_ThumbStrip))
+        return FVM_THUMBSTRIP;
+    return E_UNEXPECTED;
+}
+
+const SHELLVIEWID *
+FolderViewModeToShellViewId(UINT FVM)
+{
+    static const SHELLVIEWID *vids[] = {
+        &VID_LargeIcons, &VID_SmallIcons,
+        &VID_Details, &VID_Thumbnails,
+        &VID_Tile, &VID_ThumbStrip,
+    };
+    FVM -= FVM_FIRST;
+    return FVM < _countof(vids) ? vids[FVM] : NULL;
+}
+
 // This class adapts the legacy function callback to work as an IShellFolderViewCB
 class CShellFolderViewCBWrapper :
     public CComObjectRootEx<CComMultiThreadModelNoCS>,
diff --git a/dll/win32/shell32/folders/CControlPanelFolder.cpp b/dll/win32/shell32/folders/CControlPanelFolder.cpp
index bebb5e11073..2c00077986f 100644
--- a/dll/win32/shell32/folders/CControlPanelFolder.cpp
+++ b/dll/win32/shell32/folders/CControlPanelFolder.cpp
@@ -386,7 +386,7 @@ HRESULT WINAPI CControlPanelFolder::CreateViewObject(HWND hwndOwner, REFIID riid
             WARN("IContextMenu not implemented\n");
             hr = E_NOTIMPL;
         } else if (IsEqualIID(riid, IID_IShellView)) {
-            SFV_CREATE sfvparams = {sizeof(SFV_CREATE), this};
+            SFV_CREATE sfvparams = { sizeof(SFV_CREATE), this , NULL, this };
             hr = SHCreateShellFolderView(&sfvparams, (IShellView**)ppvOut);
         }
     }
@@ -673,6 +673,23 @@ HRESULT WINAPI CControlPanelFolder::GetCurFolder(PIDLIST_ABSOLUTE * pidl)
     return S_OK;
 }
 
+HRESULT WINAPI CControlPanelFolder::MessageSFVCB(UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+    switch (uMsg)
+    {
+        case SFVM_DEFVIEWMODE:
+        {
+        #if ROSPOLICY_CONTROLSFOLDER_DEFLARGEICONS
+            *((FOLDERVIEWMODE*)lParam) = FVM_ICON;
+        #else
+            *((FOLDERVIEWMODE*)lParam) = IsOS(OS_SERVERADMINUI) ? FVM_LIST : FVM_ICON;
+        #endif
+            return S_OK;
+        }
+    }
+    return E_NOTIMPL;
+}
+
 CCPLItemMenu::CCPLItemMenu()
 {
     m_apidl = NULL;
diff --git a/dll/win32/shell32/folders/CControlPanelFolder.h b/dll/win32/shell32/folders/CControlPanelFolder.h
index 282ca461315..27f1e73e1d2 100644
--- a/dll/win32/shell32/folders/CControlPanelFolder.h
+++ b/dll/win32/shell32/folders/CControlPanelFolder.h
@@ -26,7 +26,8 @@ class CControlPanelFolder :
     public CComCoClass<CControlPanelFolder, &CLSID_ControlPanel>,
     public CComObjectRootEx<CComMultiThreadModelNoCS>,
     public IShellFolder2,
-    public IPersistFolder2
+    public IPersistFolder2,
+    public IShellFolderViewCB
 {
     private:
         /* both paths are parsible from the desktop */
@@ -70,6 +71,9 @@ class CControlPanelFolder :
         // IPersistFolder2
         STDMETHOD(GetCurFolder)(PIDLIST_ABSOLUTE * pidl) override;
 
+        // IShellFolderViewCB
+        STDMETHODIMP MessageSFVCB(UINT uMsg, WPARAM wParam, LPARAM lParam) override;
+
         DECLARE_REGISTRY_RESOURCEID(IDR_CONTROLPANEL)
         DECLARE_NOT_AGGREGATABLE(CControlPanelFolder)
 
@@ -81,6 +85,7 @@ class CControlPanelFolder :
         COM_INTERFACE_ENTRY_IID(IID_IPersistFolder, IPersistFolder)
         COM_INTERFACE_ENTRY_IID(IID_IPersistFolder2, IPersistFolder2)
         COM_INTERFACE_ENTRY_IID(IID_IPersist, IPersist)
+        COM_INTERFACE_ENTRY_IID(IID_IShellFolderViewCB, IShellFolderViewCB)
         END_COM_MAP()
 };
 
diff --git a/dll/win32/shell32/folders/CDesktopFolder.cpp b/dll/win32/shell32/folders/CDesktopFolder.cpp
index 941e9027dda..408676973a7 100644
--- a/dll/win32/shell32/folders/CDesktopFolder.cpp
+++ b/dll/win32/shell32/folders/CDesktopFolder.cpp
@@ -1085,6 +1085,11 @@ HRESULT WINAPI CDesktopFolderViewCB::MessageSFVCB(UINT uMsg, WPARAM wParam, LPAR
 {
     switch (uMsg)
     {
+        #if ROSPOLICY_DESKTOPFOLDER_DEFLARGEICONS
+        case SFVM_DEFVIEWMODE:                     // CDesktopBrowser always forces FVM_ICON.
+            *((FOLDERVIEWMODE*)lParam) = FVM_ICON; // This sets the default for generic browsers.
+            return S_OK;
+        #endif
         case SFVM_VIEWRELEASE:
             m_pShellView = NULL;
             return S_OK;
diff --git a/dll/win32/shell32/folders/CDrivesFolder.cpp b/dll/win32/shell32/folders/CDrivesFolder.cpp
index 7baabd7c9dc..9c9ef864390 100644
--- a/dll/win32/shell32/folders/CDrivesFolder.cpp
+++ b/dll/win32/shell32/folders/CDrivesFolder.cpp
@@ -952,8 +952,8 @@ HRESULT WINAPI CDrivesFolder::CreateViewObject(HWND hwndOwner, REFIID riid, LPVO
     }
     else if (IsEqualIID(riid, IID_IShellView))
     {
-            SFV_CREATE sfvparams = { sizeof(SFV_CREATE), this, NULL, static_cast<IShellFolderViewCB*>(this) };
-            hr = SHCreateShellFolderView(&sfvparams, (IShellView**)ppvOut);
+        SFV_CREATE sfvparams = { sizeof(SFV_CREATE), this, NULL, this };
+        hr = SHCreateShellFolderView(&sfvparams, (IShellView**)ppvOut);
     }
     TRACE("-- (%p)->(interface=%p)\n", this, ppvOut);
     return hr;
@@ -1419,6 +1419,11 @@ STDMETHODIMP CDrivesFolder::MessageSFVCB(UINT uMsg, WPARAM wParam, LPARAM lParam
                 g_IsFloppyCache = 0;
             }
             break;
+        #if ROSPOLICY_DRIVESFOLDER_DEFLARGEICONS
+        case SFVM_DEFVIEWMODE:
+            *((FOLDERVIEWMODE*)lParam) = FVM_ICON;
+            return S_OK;
+        #endif
     }
     return E_NOTIMPL;
 }
diff --git a/dll/win32/shlwapi/ordinal.c b/dll/win32/shlwapi/ordinal.c
index 1ad9aefc2bb..f4a6cf3bdfe 100644
--- a/dll/win32/shlwapi/ordinal.c
+++ b/dll/win32/shlwapi/ordinal.c
@@ -4344,8 +4344,21 @@ BOOL WINAPI IsOS(DWORD feature)
         FIXME("(OS_TABLETPC) What should we return here?\n");
         return FALSE;
     case OS_SERVERADMINUI:
+#ifdef __REACTOS__
+        {
+            DWORD value = FALSE, size = sizeof(value);
+            HKEY hKey = SHGetShellKey(SHKEY_Root_HKCU | SHKEY_Key_Explorer, L"Advanced", FALSE);
+            if (hKey)
+            {
+                SHQueryValueExW(hKey, L"ServerAdminUI", NULL, NULL, &value, &size);
+                RegCloseKey(hKey);
+            }
+            ISOS_RETURN(value);
+        }
+#else
         FIXME("(OS_SERVERADMINUI) What should we return here?\n");
         return FALSE;
+#endif
     case OS_MEDIACENTER:
         FIXME("(OS_MEDIACENTER) What should we return here?\n");
         return FALSE;
diff --git a/modules/rostests/apitests/ntdll/RtlGetNtProductType.c b/modules/rostests/apitests/ntdll/RtlGetNtProductType.c
index 29051810ec2..1d221a854cf 100644
--- a/modules/rostests/apitests/ntdll/RtlGetNtProductType.c
+++ b/modules/rostests/apitests/ntdll/RtlGetNtProductType.c
@@ -135,8 +135,8 @@ START_TEST(RtlGetNtProductType)
     if (RegOpenKeyExW(HKEY_LOCAL_MACHINE, L"SYSTEM\\CurrentControlSet\\Control\\ReactOS\\Settings\\Version",
                       0, KEY_READ | KEY_WRITE, &hKey) == ERROR_SUCCESS)
     {
-        DWORD cb = sizeof(DWORD);
-        if (RegQueryValueExW(hKey, L"ReportAsWorkstation", NULL, NULL, (PBYTE)&ReportAsWorkstation, &cb))
+        DWORD cb = sizeof(ReportAsWorkstation);
+        if (RegQueryValueExW(hKey, L"ReportAsWorkstation", NULL, NULL, (PBYTE)&ReportAsWorkstation, &cb) != ERROR_SUCCESS)
             ReportAsWorkstation = 0xbaadf00d;
         RegDeleteValueW(hKey, L"ReportAsWorkstation");
         RegCloseKey(hKey);
@@ -178,13 +178,12 @@ START_TEST(RtlGetNtProductType)
 
     ok_char(ChangeNtProductType(ProductType), TRUE);
 
-
     /* Restore ReportAsWorkstation */
     if (RegOpenKeyExW(HKEY_LOCAL_MACHINE, L"SYSTEM\\CurrentControlSet\\Control\\ReactOS\\Settings\\Version",
                       0, KEY_WRITE, &hKey) == ERROR_SUCCESS)
     {
         if (ReportAsWorkstation != 0xbaadf00d)
-            RegSetValueExW(hKey, L"ReportAsWorkstation", 0, REG_DWORD, (PBYTE)&ReportAsWorkstation, sizeof(DWORD));
+            RegSetValueExW(hKey, L"ReportAsWorkstation", 0, REG_DWORD, (PBYTE)&ReportAsWorkstation, sizeof(ReportAsWorkstation));
         RegCloseKey(hKey);
     }
 }
diff --git a/sdk/include/psdk/shobjidl.idl b/sdk/include/psdk/shobjidl.idl
index dfd83ef0335..bf9215463da 100644
--- a/sdk/include/psdk/shobjidl.idl
+++ b/sdk/include/psdk/shobjidl.idl
@@ -793,6 +793,9 @@ interface IShellView : IOleWindow
 interface IShellView2 : IShellView
 {
     typedef GUID SHELLVIEWID;
+cpp_quote("#define SV2GV_CURRENTVIEW ((UINT)-1)")
+cpp_quote("#define SV2GV_DEFAULTVIEW ((UINT)-2)")
+
 cpp_quote("#include <pshpack8.h>")
     typedef struct _SV2CVW2_PARAMS
     {
diff --git a/sdk/include/reactos/undocshell.h b/sdk/include/reactos/undocshell.h
index aab3a4ffa9f..82017390187 100644
--- a/sdk/include/reactos/undocshell.h
+++ b/sdk/include/reactos/undocshell.h
@@ -26,6 +26,16 @@
 extern "C" {
 #endif /* defined(__cplusplus) */
 
+// Because ReactOS installs as Server by default, we ignore OS_SERVERADMINUI
+// in certain places to present a Client/Server hybrid UI.
+
+// Windows defaults to FVM_DETAILS for Administrators on OS_ANYSERVER (instead of FVM_ICON).
+#define ROSPOLICY_DESKTOPFOLDER_DEFLARGEICONS 1
+#define ROSPOLICY_DRIVESFOLDER_DEFLARGEICONS 1
+#define ROSPOLICY_CONTROLSFOLDER_DEFLARGEICONS 1
+
+#define ROSPOLICY_SHELL_NODEFKEYBOARDCUES 1
+
 #if (NTDDI_VERSION < NTDDI_LONGHORN)
 #define DBIMF_NOGRIPPER         0x0800
 #define DBIMF_ALWAYSGRIPPER     0x1000