diff --git a/dlls/propsys/propsys.spec b/dlls/propsys/propsys.spec
index bbc71654a82..19c5a24c925 100644
--- a/dlls/propsys/propsys.spec
+++ b/dlls/propsys/propsys.spec
@@ -65,7 +65,7 @@
 @ stub PSCoerceToCanonicalValue
 @ stub PSCreateAdapterFromPropertyStore
 @ stub PSCreateDelayedMultiplexPropertyStore
-@ stub PSCreateMemoryPropertyStore
+@ stdcall PSCreateMemoryPropertyStore(ptr ptr)
 @ stub PSCreateMultiplexPropertyStore
 @ stub PSCreatePropertyChangeArray
 @ stub PSCreatePropertyStoreFromObject
diff --git a/dlls/propsys/propsys_main.c b/dlls/propsys/propsys_main.c
index 1dbaee433f6..65d157d0cc6 100644
--- a/dlls/propsys/propsys_main.c
+++ b/dlls/propsys/propsys_main.c
@@ -509,3 +509,10 @@ HRESULT WINAPI PSPropertyKeyFromString(LPCWSTR pszString, PROPERTYKEY *pkey)
 
     return S_OK;
 }
+
+HRESULT WINAPI PSCreateMemoryPropertyStore(REFIID riid, void **ppv)
+{
+    TRACE("(%s, %p)\n", debugstr_guid(riid), ppv);
+
+    return PropertyStore_CreateInstance(NULL, riid, ppv);
+}
diff --git a/dlls/propsys/tests/propstore.c b/dlls/propsys/tests/propstore.c
index 3fe8613a8b8..132f5ff0f5f 100644
--- a/dlls/propsys/tests/propstore.c
+++ b/dlls/propsys/tests/propstore.c
@@ -35,6 +35,15 @@
 
 DEFINE_GUID(PKEY_WineTest, 0x7b317433, 0xdfa3, 0x4c44, 0xad, 0x3e, 0x2f, 0x80, 0x4b, 0x90, 0xdb, 0xf4);
 
+#define EXPECT_REF(obj,ref) _expect_ref((IUnknown *)obj, ref, __LINE__)
+static void _expect_ref(IUnknown *obj, ULONG ref, int line)
+{
+    ULONG rc;
+    IUnknown_AddRef(obj);
+    rc = IUnknown_Release(obj);
+    ok_(__FILE__,line)(rc == ref, "expected refcount %d, got %d\n", ref, rc);
+}
+
 static void test_inmemorystore(void)
 {
     IPropertyStoreCache *propcache;
@@ -249,12 +258,57 @@ static void test_persistserialized(void)
     IPersistSerializedPropStorage_Release(serialized);
 }
 
+static void test_PSCreateMemoryPropertyStore(void)
+{
+    IPropertyStore *propstore, *propstore1;
+    IPersistSerializedPropStorage *serialized;
+    IPropertyStoreCache *propstorecache;
+    HRESULT hr;
+
+    /* PSCreateMemoryPropertyStore(&IID_IPropertyStore, NULL); crashes */
+
+    hr = PSCreateMemoryPropertyStore(&IID_IPropertyStore, (void **)&propstore);
+    ok(hr == S_OK, "PSCreateMemoryPropertyStore failed: 0x%08x.\n", hr);
+    ok(propstore != NULL, "got %p.\n", propstore);
+    EXPECT_REF(propstore, 1);
+
+    hr = PSCreateMemoryPropertyStore(&IID_IPersistSerializedPropStorage, (void **)&serialized);
+    todo_wine ok(hr == S_OK, "PSCreateMemoryPropertyStore failed: 0x%08x.\n", hr);
+    todo_wine ok(serialized != NULL, "got %p.\n", serialized);
+    EXPECT_REF(propstore, 1);
+    if(serialized)
+    {
+        EXPECT_REF(serialized, 1);
+        IPersistSerializedPropStorage_Release(serialized);
+    }
+
+    hr = PSCreateMemoryPropertyStore(&IID_IPropertyStoreCache, (void **)&propstorecache);
+    ok(hr == S_OK, "PSCreateMemoryPropertyStore failed: 0x%08x.\n", hr);
+    ok(propstorecache != NULL, "got %p.\n", propstore);
+    ok(propstorecache != (IPropertyStoreCache *)propstore, "pointer are equal: %p, %p.\n", propstorecache, propstore);
+    EXPECT_REF(propstore, 1);
+    EXPECT_REF(propstorecache, 1);
+
+    hr = PSCreateMemoryPropertyStore(&IID_IPropertyStore, (void **)&propstore1);
+    ok(hr == S_OK, "PSCreateMemoryPropertyStore failed: 0x%08x.\n", hr);
+    ok(propstore1 != NULL, "got %p.\n", propstore);
+    ok(propstore1 != propstore, "pointer are equal: %p, %p.\n", propstore1, propstore);
+    EXPECT_REF(propstore, 1);
+    EXPECT_REF(propstore1, 1);
+    EXPECT_REF(propstorecache, 1);
+
+    IPropertyStore_Release(propstore1);
+    IPropertyStore_Release(propstore);
+    IPropertyStoreCache_Release(propstorecache);
+}
+
 START_TEST(propstore)
 {
     CoInitialize(NULL);
 
     test_inmemorystore();
     test_persistserialized();
+    test_PSCreateMemoryPropertyStore();
 
     CoUninitialize();
 }
diff --git a/include/propsys.idl b/include/propsys.idl
index 04d3fbf8a1b..bdd67fa6a59 100644
--- a/include/propsys.idl
+++ b/include/propsys.idl
@@ -799,6 +799,7 @@ cpp_quote("#define PKEY_PIDSTR_MAX 10")
 cpp_quote("#define GUIDSTRING_MAX 39")
 cpp_quote("#define PKEYSTR_MAX (GUIDSTRING_MAX + 1 + PKEY_PIDSTR_MAX)")
 
+cpp_quote("HRESULT WINAPI PSCreateMemoryPropertyStore(REFIID,void **);")
 cpp_quote("HRESULT WINAPI PSStringFromPropertyKey(REFPROPERTYKEY,LPWSTR,UINT);")
 cpp_quote("HRESULT WINAPI PSPropertyKeyFromString(LPCWSTR,PROPERTYKEY*);")
 cpp_quote("HRESULT WINAPI PSGetPropertyDescription(REFPROPERTYKEY,REFIID,void **);")