diff --git a/reactos/dll/ntdll/ldr/ldrpe.c b/reactos/dll/ntdll/ldr/ldrpe.c
index 260c5bd7100..da32ab2c810 100644
--- a/reactos/dll/ntdll/ldr/ldrpe.c
+++ b/reactos/dll/ntdll/ldr/ldrpe.c
@@ -686,7 +686,7 @@ LdrpWalkImportDescriptor(IN LPWSTR DllPath OPTIONAL,
 {
     RTL_CALLER_ALLOCATED_ACTIVATION_CONTEXT_STACK_FRAME_EXTENDED ActCtx;
     PPEB Peb = NtCurrentPeb();
-    NTSTATUS Status = STATUS_SUCCESS;
+    NTSTATUS Status = STATUS_SUCCESS, Status2;
     PIMAGE_BOUND_IMPORT_DESCRIPTOR BoundEntry = NULL;
     PIMAGE_IMPORT_DESCRIPTOR ImportEntry;
     ULONG BoundSize, IatSize;
@@ -700,7 +700,24 @@ LdrpWalkImportDescriptor(IN LPWSTR DllPath OPTIONAL,
     /* Check if we have a manifest prober routine */
     if (LdrpManifestProberRoutine)
     {
-        DPRINT1("We don't support manifests yet, much less prober routines\n");
+        /* Probe the DLL for its manifest. Some details are omitted */
+        Status2 = LdrpManifestProberRoutine(LdrEntry->DllBase, LdrEntry->FullDllName.Buffer, &LdrEntry->EntryPointActivationContext);
+
+        if (!NT_SUCCESS(Status2) &&
+            Status2 != STATUS_NO_SUCH_FILE &&
+            Status2 != STATUS_RESOURCE_DATA_NOT_FOUND &&
+            Status2 != STATUS_RESOURCE_TYPE_NOT_FOUND &&
+            Status2 != STATUS_RESOURCE_NAME_NOT_FOUND &&
+            Status2 != STATUS_RESOURCE_LANG_NOT_FOUND)
+        {
+            /* Some serious issue */
+            Status = Status2;
+            DbgPrintEx(DPFLTR_SXS_ID,
+                DPFLTR_WARNING_LEVEL,
+                "LDR: LdrpWalkImportDescriptor() failed to probe %wZ for its "
+                "manifest, ntstatus = 0x%08lx\n",
+                &LdrEntry->FullDllName, Status);
+        }
     }
 
     /* Check if we failed above */
diff --git a/reactos/dll/ntdll/ldr/ldrutils.c b/reactos/dll/ntdll/ldr/ldrutils.c
index 44dde719da0..840932db2d3 100644
--- a/reactos/dll/ntdll/ldr/ldrutils.c
+++ b/reactos/dll/ntdll/ldr/ldrutils.c
@@ -21,29 +21,7 @@ BOOLEAN g_ShimsEnabled;
 
 /* FUNCTIONS *****************************************************************/
 
-/* NOTE: Remove those two once our actctx support becomes better */
-NTSTATUS create_module_activation_context( LDR_DATA_TABLE_ENTRY *module )
-{
-    NTSTATUS status;
-    LDR_RESOURCE_INFO info;
-    IMAGE_RESOURCE_DATA_ENTRY *entry;
-
-    info.Type = (ULONG)RT_MANIFEST;
-    info.Name = (ULONG)ISOLATIONAWARE_MANIFEST_RESOURCE_ID;
-    info.Language = 0;
-    if (!(status = LdrFindResource_U( module->DllBase, &info, 3, &entry )))
-    {
-        ACTCTXW ctx;
-        ctx.cbSize   = sizeof(ctx);
-        ctx.lpSource = NULL;
-        ctx.dwFlags  = ACTCTX_FLAG_RESOURCE_NAME_VALID | ACTCTX_FLAG_HMODULE_VALID;
-        ctx.hModule  = module->DllBase;
-        ctx.lpResourceName = (LPCWSTR)ISOLATIONAWARE_MANIFEST_RESOURCE_ID;
-        status = RtlCreateActivationContext(0, (PVOID)&ctx, 0, NULL, NULL, &module->EntryPointActivationContext);
-    }
-    return status;
-}
-
+/* NOTE: Remove thise one once our actctx support becomes better */
 NTSTATUS find_actctx_dll( LPCWSTR libname, WCHAR *fullname )
 {
     static const WCHAR winsxsW[] = {'\\','w','i','n','s','x','s','\\'};
diff --git a/reactos/dll/win32/kernel32/client/actctx.c b/reactos/dll/win32/kernel32/client/actctx.c
index d026c5b6a51..12ab09062de 100644
--- a/reactos/dll/win32/kernel32/client/actctx.c
+++ b/reactos/dll/win32/kernel32/client/actctx.c
@@ -131,6 +131,50 @@ Quickie:
     return Status;
 }
 
+NTSTATUS
+NTAPI
+BasepProbeForDllManifest(IN PVOID DllHandle,
+                         IN PCWSTR FullDllName,
+                         OUT PVOID *ActCtx)
+{
+    NTSTATUS Status = STATUS_SUCCESS;
+    LDR_RESOURCE_INFO Info;
+    IMAGE_RESOURCE_DATA_ENTRY *Entry;
+    ACTCTXW Context;
+    HANDLE Result;
+
+    /* Check if activation context parameter is provided */
+    if (!ActCtx)
+    {
+        ASSERT(FALSE);
+        return STATUS_INVALID_PARAMETER;
+    }
+
+    /* Zero it out */
+    *ActCtx = NULL;
+
+    /* Check whether the image has manifest resource associated with it */
+    Info.Type = (ULONG)RT_MANIFEST;
+    Info.Name = (ULONG)ISOLATIONAWARE_MANIFEST_RESOURCE_ID;
+    Info.Language = 0;
+    if (!(Status = LdrFindResource_U(DllHandle, &Info, 2, &Entry)))
+    {
+        /* Create the activation context */
+        Context.cbSize = sizeof(Context);
+        Context.lpSource = FullDllName;
+        Context.dwFlags = ACTCTX_FLAG_RESOURCE_NAME_VALID | ACTCTX_FLAG_HMODULE_VALID;
+        Context.hModule = DllHandle;
+        Context.lpResourceName = (LPCWSTR)ISOLATIONAWARE_MANIFEST_RESOURCE_ID;
+
+        Status = RtlCreateActivationContext(0, (PVOID)&Context, 0, NULL, NULL, &Result);
+
+        /* Store activation context pointer if it was created successfully */
+        if (NT_SUCCESS(Status)) *ActCtx = Result;
+    }
+
+    return Status;
+}
+
 /* PUBLIC FUNCTIONS **********************************************************/
 
 /*
diff --git a/reactos/dll/win32/kernel32/client/dllmain.c b/reactos/dll/win32/kernel32/client/dllmain.c
index abb06625acc..112b79f62c1 100644
--- a/reactos/dll/win32/kernel32/client/dllmain.c
+++ b/reactos/dll/win32/kernel32/client/dllmain.c
@@ -110,6 +110,9 @@ DllMain(HANDLE hDll,
             /* Enable the Rtl thread pool and timer queue to use proper Win32 thread */
             RtlSetThreadPoolStartFunc(BaseCreateThreadPoolThread, BaseExitThreadPoolThread);
 
+            /* Register the manifest prober routine */
+            LdrSetDllManifestProber(BasepProbeForDllManifest);
+
             /* Don't bother us for each thread */
             LdrDisableThreadCalloutsForDll((PVOID)hDll);
 
diff --git a/reactos/dll/win32/kernel32/include/kernel32.h b/reactos/dll/win32/kernel32/include/kernel32.h
index 73642de88b1..203310fa3e7 100644
--- a/reactos/dll/win32/kernel32/include/kernel32.h
+++ b/reactos/dll/win32/kernel32/include/kernel32.h
@@ -217,6 +217,14 @@ BasepAllocateActivationContextActivationBlock(
     OUT PBASEP_ACTCTX_BLOCK *ActivationBlock
 );
 
+NTSTATUS
+NTAPI
+BasepProbeForDllManifest(
+    IN PVOID DllHandle,
+    IN PCWSTR FullDllName,
+    OUT PVOID *ActCtx
+);
+
 __declspec(noreturn)
 VOID
 WINAPI
diff --git a/reactos/lib/rtl/actctx.c b/reactos/lib/rtl/actctx.c
index 5e0d410caa3..88794aa3828 100644
--- a/reactos/lib/rtl/actctx.c
+++ b/reactos/lib/rtl/actctx.c
@@ -2615,6 +2615,7 @@ static NTSTATUS get_manifest_in_module( struct actctx_loader* acl, struct assemb
 
     //DPRINT( "looking for res %s in module %p %s\n", resname,
     //                hModule, filename );
+    DPRINT("get_manifest_in_module %p\n", hModule);
 
 #if 0
     if (TRACE_ON(actctx))
@@ -3139,7 +3140,7 @@ static NTSTATUS build_dllredirect_section(ACTIVATION_CONTEXT* actctx, struct str
             total_len += sizeof(*data);
             total_len += aligned_string_len((strlenW(dll->name)+1)*sizeof(WCHAR));
 
-            DPRINT("assembly %d, dll %d: dll name %S\n", i, j, dll->name);
+            DPRINT("assembly %d (%p), dll %d: dll name %S\n", i, assembly, j, dll->name);
         }
 
         dll_count += assembly->num_dlls;
@@ -4922,6 +4923,10 @@ NTAPI RtlActivateActivationContextEx( ULONG flags, PTEB tebAddress, HANDLE handl
     frame->ActivationContext = handle;
     frame->Flags = 0;
 
+    DPRINT("ActiveSP %p: ACTIVATE (ActiveFrame %p -> NewFrame %p, Context %p)\n",
+        tebAddress->ActivationContextStackPointer, tebAddress->ActivationContextStackPointer->ActiveFrame,
+        frame, handle);
+
     tebAddress->ActivationContextStackPointer->ActiveFrame = frame;
     RtlAddRefActivationContext( handle );
 
@@ -4958,6 +4963,11 @@ NTSTATUS NTAPI RtlDeactivateActivationContext( ULONG flags, ULONG_PTR cookie )
     if (frame != top && !(flags & RTL_DEACTIVATE_ACTIVATION_CONTEXT_FLAG_FORCE_EARLY_DEACTIVATION))
         RtlRaiseStatus( STATUS_SXS_EARLY_DEACTIVATION );
 
+    DPRINT("ActiveSP %p: DEACTIVATE (ActiveFrame %p -> PreviousFrame %p)\n",
+        NtCurrentTeb()->ActivationContextStackPointer,
+        NtCurrentTeb()->ActivationContextStackPointer->ActiveFrame,
+        frame->Previous);
+
     /* pop everything up to and including frame */
     NtCurrentTeb()->ActivationContextStackPointer->ActiveFrame = frame->Previous;
 
@@ -5422,7 +5432,7 @@ RtlActivateActivationContextUnsafeFast(IN PRTL_CALLER_ALLOCATED_ACTIVATION_CONTE
     /* Get the current active frame */
     ActiveFrame = NtCurrentTeb()->ActivationContextStackPointer->ActiveFrame;
 
-    DPRINT("ActiveSP %p, ActiveFrame %p, &Frame->Frame %p, Context %p\n",
+    DPRINT("ActiveSP %p: ACTIVATE (ActiveFrame %p -> NewFrame %p, Context %p)\n",
         NtCurrentTeb()->ActivationContextStackPointer, ActiveFrame,
         &Frame->Frame, Context);
 
@@ -5533,7 +5543,8 @@ RtlDeactivateActivationContextUnsafeFast(IN PRTL_CALLER_ALLOCATED_ACTIVATION_CON
         DPRINT1("Deactivating wrong active frame: %p != %p\n", ActiveFrame, NewFrame);
     }
 
-    DPRINT("Deactivated actctx %p, active frame %p, new active frame %p\n", NtCurrentTeb()->ActivationContextStackPointer, NewFrame, NewFrame->Previous);
+    DPRINT("ActiveSP %p: DEACTIVATE (ActiveFrame %p -> PreviousFrame %p)\n",
+        NtCurrentTeb()->ActivationContextStackPointer, NewFrame, NewFrame->Previous);
 
     /* Pop everything up to and including frame */
     NtCurrentTeb()->ActivationContextStackPointer->ActiveFrame = NewFrame->Previous;