diff --git a/include/mscoree.idl b/include/mscoree.idl
index 8dfaa1b4637..5877eb6650c 100644
--- a/include/mscoree.idl
+++ b/include/mscoree.idl
@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2007 Francois Gouget
+ * Copyright (C) 2008 Alistair Leslie-Hughes
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -16,6 +17,7 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
+import "unknwn.idl";
 cpp_quote("/* FIXME: #include <gcghost.h> */")
 cpp_quote("/* FIXME: #include <ivalidator.h> */")
 
@@ -25,3 +27,140 @@ cpp_quote("HRESULT     WINAPI GetCORSystemDirectory(LPWSTR,DWORD,DWORD*);")
 cpp_quote("HRESULT     WINAPI GetCORVersion(LPWSTR,DWORD,DWORD*);")
 cpp_quote("HRESULT     WINAPI GetRequestedRuntimeInfo(LPCWSTR,LPCWSTR,LPCWSTR,DWORD,DWORD,LPWSTR,DWORD,DWORD*,LPWSTR,DWORD,DWORD*);")
 cpp_quote("HRESULT     WINAPI LoadLibraryShim(LPCWSTR,LPCWSTR,LPVOID,HMODULE*);")
+
+typedef void* HDOMAINENUM;
+
+[
+    uuid(F31D1788-C397-4725-87A5-6AF3472C2791),
+    version(1.0),
+    object,
+    local
+]
+interface IGCThreadControl : IUnknown
+{
+    HRESULT ThreadIsBlockingForSuspension();
+
+    HRESULT SuspensionStarting();
+
+    HRESULT SuspensionEnding(DWORD generation);
+}
+
+[
+    uuid(5513D564-8374-4cb9-AED9-0083F4160A1D),
+    version(1.1),
+    local,
+    object
+]
+interface IGCHostControl : IUnknown
+{
+    HRESULT RequestVirtualMemLimit([in] SIZE_T nMaxVirtualMemMB,
+                                   [in, out] SIZE_T* nNewMaxVirtualMemMB);
+}
+
+[
+    uuid(23D86786-0BB5-4774-8FB5-E3522ADD6246),
+    version(1.0),
+    local,
+    object
+]
+interface IDebuggerThreadControl : IUnknown
+{
+    HRESULT ThreadIsBlockingForDebugger();
+
+    HRESULT ReleaseAllRuntimeThreads();
+
+    HRESULT StartBlockingForDebugger(DWORD dwUnused);
+}
+
+[
+    uuid(5C2B07A5-1E98-11d3-872F-00C04F79ED0D),
+    version(1.0),
+    local,
+    object
+]
+interface ICorConfiguration : IUnknown
+{
+    HRESULT SetGCThreadControl([in] IGCThreadControl* GCThreadControl);
+
+    HRESULT SetGCHostControl([in] IGCHostControl* GCHostControl);
+
+    HRESULT SetDebuggerThreadControl([in] IDebuggerThreadControl* debuggerThreadControl);
+
+    HRESULT AddDebuggerSpecialThread([in] DWORD specialThreadId);
+}
+
+[
+    uuid(9065597E-D1A1-4fb2-B6BA-7E1FCE230F61),
+    version(1.0),
+    local
+]
+interface ICLRControl : IUnknown
+{
+    HRESULT GetCLRManager([in] REFIID riid, [out] void **ppObject);
+
+        HRESULT SetAppDomainManagerType([in] LPCWSTR appDomainManagerAssembly,
+                          [in] LPCWSTR appDomainManagerType);
+}
+
+[
+    uuid(02CA073C-7079-4860-880A-C2F7A449C991),
+    version(1.0),
+    local
+]
+interface IHostControl : IUnknown
+{
+    HRESULT GetHostManager( [in] REFIID riid, [out] void **ppObject);
+
+    HRESULT SetAppDomainManager([in] DWORD appDomainID,
+                            [in] IUnknown* appDomainManager);
+}
+
+[
+    uuid(CB2F6722-AB3A-11d2-9C40-00C04FA30A3E),
+    version(1.0),
+    local,
+    object
+]
+interface ICorRuntimeHost : IUnknown
+{
+    HRESULT CreateLogicalThreadState();
+    HRESULT DeleteLogicalThreadState();
+    HRESULT SwitchInLogicalThreadState([in] DWORD *fiberCookie);
+
+    HRESULT SwitchOutLogicalThreadState([out] DWORD **fiberCookie);
+
+    HRESULT LocksHeldByLogicalThread( [out] DWORD *pCount );
+
+    HRESULT MapFile([in] HANDLE hFile, [out] HMODULE* mapAddress);
+
+    HRESULT GetConfiguration([out] ICorConfiguration** pConfiguration);
+
+    HRESULT Start();
+
+    HRESULT Stop();
+
+    HRESULT CreateDomain([in] LPCWSTR friendlyName,
+                         [in] IUnknown* identityArray,
+                         [out] IUnknown** appDomain);
+
+    HRESULT GetDefaultDomain([out] IUnknown** pAppDomain);
+
+    HRESULT EnumDomains([out] HDOMAINENUM *hEnum);
+
+    HRESULT NextDomain([in] HDOMAINENUM hEnum, [out] IUnknown** appDomain);
+
+    HRESULT CloseEnum([in] HDOMAINENUM hEnum);
+
+    HRESULT CreateDomainEx([in] LPCWSTR friendlyName,
+                           [in] IUnknown* setup,
+                           [in] IUnknown* evidence,
+                           [out] IUnknown** appDomain);
+
+    HRESULT CreateDomainSetup([out] IUnknown** appDomainSetup);
+
+    HRESULT CreateEvidence([out] IUnknown** evidence);
+
+    HRESULT UnloadDomain([in] IUnknown* appDomain);
+
+    HRESULT CurrentDomain([out] IUnknown** appDomain);
+};