diff --git a/dlls/rpcrt4/ndr_marshall.c b/dlls/rpcrt4/ndr_marshall.c
index b6ff54d5fc5..e1adfa01753 100644
--- a/dlls/rpcrt4/ndr_marshall.c
+++ b/dlls/rpcrt4/ndr_marshall.c
@@ -1734,8 +1734,14 @@ static unsigned char * ComplexMarshall(PMIDL_STUB_MESSAGE pStubMsg,
     case RPC_FC_ALIGNM8:
       ALIGN_POINTER(pMemory, 8);
       break;
+    case RPC_FC_STRUCTPAD1:
     case RPC_FC_STRUCTPAD2:
-      pMemory += 2;
+    case RPC_FC_STRUCTPAD3:
+    case RPC_FC_STRUCTPAD4:
+    case RPC_FC_STRUCTPAD5:
+    case RPC_FC_STRUCTPAD6:
+    case RPC_FC_STRUCTPAD7:
+      pMemory += *pFormat - RPC_FC_STRUCTPAD1 + 1;
       break;
     case RPC_FC_EMBEDDED_COMPLEX:
       pMemory += pFormat[1];
@@ -1808,8 +1814,14 @@ static unsigned char * ComplexUnmarshall(PMIDL_STUB_MESSAGE pStubMsg,
     case RPC_FC_ALIGNM8:
       ALIGN_POINTER(pMemory, 8);
       break;
+    case RPC_FC_STRUCTPAD1:
     case RPC_FC_STRUCTPAD2:
-      pMemory += 2;
+    case RPC_FC_STRUCTPAD3:
+    case RPC_FC_STRUCTPAD4:
+    case RPC_FC_STRUCTPAD5:
+    case RPC_FC_STRUCTPAD6:
+    case RPC_FC_STRUCTPAD7:
+      pMemory += *pFormat - RPC_FC_STRUCTPAD1 + 1;
       break;
     case RPC_FC_EMBEDDED_COMPLEX:
       pMemory += pFormat[1];
@@ -1876,8 +1888,14 @@ static unsigned char * ComplexBufferSize(PMIDL_STUB_MESSAGE pStubMsg,
     case RPC_FC_ALIGNM8:
       ALIGN_POINTER(pMemory, 8);
       break;
+    case RPC_FC_STRUCTPAD1:
     case RPC_FC_STRUCTPAD2:
-      pMemory += 2;
+    case RPC_FC_STRUCTPAD3:
+    case RPC_FC_STRUCTPAD4:
+    case RPC_FC_STRUCTPAD5:
+    case RPC_FC_STRUCTPAD6:
+    case RPC_FC_STRUCTPAD7:
+      pMemory += *pFormat - RPC_FC_STRUCTPAD1 + 1;
       break;
     case RPC_FC_EMBEDDED_COMPLEX:
       pMemory += pFormat[1];
@@ -1939,8 +1957,14 @@ static unsigned char * ComplexFree(PMIDL_STUB_MESSAGE pStubMsg,
     case RPC_FC_ALIGNM8:
       ALIGN_POINTER(pMemory, 8);
       break;
+    case RPC_FC_STRUCTPAD1:
     case RPC_FC_STRUCTPAD2:
-      pMemory += 2;
+    case RPC_FC_STRUCTPAD3:
+    case RPC_FC_STRUCTPAD4:
+    case RPC_FC_STRUCTPAD5:
+    case RPC_FC_STRUCTPAD6:
+    case RPC_FC_STRUCTPAD7:
+      pMemory += *pFormat - RPC_FC_STRUCTPAD1 + 1;
       break;
     case RPC_FC_EMBEDDED_COMPLEX:
       pMemory += pFormat[1];
@@ -2003,8 +2027,14 @@ static unsigned long ComplexStructMemorySize(PMIDL_STUB_MESSAGE pStubMsg,
       ALIGN_LENGTH(size, 8);
       ALIGN_POINTER(pStubMsg->Buffer, 8);
       break;
+    case RPC_FC_STRUCTPAD1:
     case RPC_FC_STRUCTPAD2:
-      size += 2;
+    case RPC_FC_STRUCTPAD3:
+    case RPC_FC_STRUCTPAD4:
+    case RPC_FC_STRUCTPAD5:
+    case RPC_FC_STRUCTPAD6:
+    case RPC_FC_STRUCTPAD7:
+      size += *pFormat - RPC_FC_STRUCTPAD1 + 1;
       break;
     case RPC_FC_EMBEDDED_COMPLEX:
       size += pFormat[1];
diff --git a/include/wine/rpcfc.h b/include/wine/rpcfc.h
index 9e1003c8af5..fb479dd74f2 100644
--- a/include/wine/rpcfc.h
+++ b/include/wine/rpcfc.h
@@ -88,7 +88,13 @@
 #define RPC_FC_ALIGNM4			0x38
 #define RPC_FC_ALIGNM8			0x39
 
+#define RPC_FC_STRUCTPAD1		0x3d
 #define RPC_FC_STRUCTPAD2		0x3e
+#define RPC_FC_STRUCTPAD3		0x3f
+#define RPC_FC_STRUCTPAD4       0x40
+#define RPC_FC_STRUCTPAD5       0x41
+#define RPC_FC_STRUCTPAD6       0x42
+#define RPC_FC_STRUCTPAD7       0x43
 
 #define RPC_FC_STRING_SIZED		0x44