diff --git a/reactos/dll/win32/rpcrt4/CMakeLists.txt b/reactos/dll/win32/rpcrt4/CMakeLists.txt
index fa024a5ee24..85207ed0121 100644
--- a/reactos/dll/win32/rpcrt4/CMakeLists.txt
+++ b/reactos/dll/win32/rpcrt4/CMakeLists.txt
@@ -52,6 +52,6 @@ set_module_type(rpcrt4 win32dll)
 target_link_libraries(rpcrt4 wine uuid ${PSEH_LIB})
 
 add_delay_importlibs(rpcrt4 iphlpapi wininet secur32 user32)
-add_importlibs(rpcrt4 msvcrt advapi32 ws2_32 kernel32 ntdll)
+add_importlibs(rpcrt4 advapi32 ws2_32 shlwapi msvcrt kernel32 ntdll)
 add_pch(rpcrt4 precomp.h SOURCE)
 add_cd_file(TARGET rpcrt4 DESTINATION reactos/system32 FOR all)
diff --git a/reactos/dll/win32/rpcrt4/cpsf.c b/reactos/dll/win32/rpcrt4/cpsf.c
index 72029a66889..888b057c73d 100644
--- a/reactos/dll/win32/rpcrt4/cpsf.c
+++ b/reactos/dll/win32/rpcrt4/cpsf.c
@@ -22,6 +22,12 @@
 
 #include <winreg.h>
 
+#define NO_SHLWAPI_PATH
+#define NO_SHLWAPI_STRFCNS
+#define NO_SHLWAPI_GDI
+#define NO_SHLWAPI_STREAM
+#include <shlwapi.h>
+
 WINE_DEFAULT_DEBUG_CHANNEL(ole);
 
 static void format_clsid( WCHAR *buffer, const CLSID *clsid )
@@ -308,7 +314,7 @@ HRESULT WINAPI NdrDllUnregisterProxy(HMODULE hDll,
 
       strcpyW( keyname, interfaceW );
       format_clsid( keyname + strlenW(keyname), proxy->header.piid );
-      RegDeleteTreeW(HKEY_CLASSES_ROOT, keyname);
+      SHDeleteKeyW(HKEY_CLASSES_ROOT, keyname);
     }
     pProxyFileList++;
   }
@@ -316,7 +322,7 @@ HRESULT WINAPI NdrDllUnregisterProxy(HMODULE hDll,
   /* unregister clsid */
   strcpyW( keyname, clsidW );
   strcatW( keyname, clsid );
-  RegDeleteTreeW(HKEY_CLASSES_ROOT, keyname);
+  SHDeleteKeyW(HKEY_CLASSES_ROOT, keyname);
 
   return S_OK;
 }