diff --git a/sdk/xtdk/ketypes.h b/sdk/xtdk/ketypes.h
index b3c4799..4171f9c 100644
--- a/sdk/xtdk/ketypes.h
+++ b/sdk/xtdk/ketypes.h
@@ -13,6 +13,7 @@
 #include <xtstruct.h>
 #include <xttarget.h>
 #include <xttypes.h>
+#include <rtltypes.h>
 #include ARCH_HEADER(xtstruct.h)
 
 
@@ -326,6 +327,27 @@ typedef VOID (XTAPI *PKRUNDOWN_ROUTINE)(IN PKAPC Apc);
 typedef VOID (XTCDECL *PKSTART_ROUTINE)(IN PVOID StartContext);
 typedef VOID (XTCDECL *PKSYSTEM_ROUTINE)(IN PKSTART_ROUTINE StartRoutine, IN PVOID StartContext);
 
+/* Dispatcher object header structure definition */
+typedef struct _DISPATCHER_HEADER
+{
+    union
+    {
+        struct
+        {
+            UCHAR Type;
+            UCHAR Absolute;
+            UCHAR Size;
+            union {
+                UCHAR Inserted;
+                BOOLEAN DebugActive;
+            };
+        };
+        VOLATILE LONG Lock;
+    };
+    LONG SignalState;
+    LIST_ENTRY WaitListHead;
+} DISPATCHER_HEADER, *PDISPATCHER_HEADER;
+
 /* Exception record structure definition */
 typedef struct _EXCEPTION_RECORD
 {
@@ -649,8 +671,8 @@ typedef struct _KTHREAD
     UCHAR Spare5;
     BOOLEAN AutoAlignment;
     UCHAR Iopl;
-    CCHAR FreezeCount;
-    CCHAR SuspendCount;
+    CHAR FreezeCount;
+    CHAR SuspendCount;
     UCHAR Spare0[1];
     UCHAR UserIdealProcessor;
     UCHAR Spare2[3];
diff --git a/sdk/xtdk/rtltypes.h b/sdk/xtdk/rtltypes.h
index 166c303..e036325 100644
--- a/sdk/xtdk/rtltypes.h
+++ b/sdk/xtdk/rtltypes.h
@@ -72,6 +72,36 @@
 typedef XTSTATUS (*PWRITE_CHARACTER)(IN CHAR Character);
 typedef XTSTATUS (*PWRITE_WIDE_CHARACTER)(IN WCHAR Character);
 
+/* 128-bit buffer containing a unique identifier value */
+typedef struct _GUID
+{
+    UINT Data1;
+    USHORT Data2;
+    USHORT Data3;
+    UCHAR Data4[8];
+} GUID, *PGUID;
+
+/* Double linked list structure definition */
+typedef struct _LIST_ENTRY
+{
+    PLIST_ENTRY Flink;
+    PLIST_ENTRY Blink;
+} LIST_ENTRY, *PLIST_ENTRY;
+
+/* 32-bit double linked list structure definition */
+typedef struct _LIST_ENTRY32
+{
+    ULONG Flink;
+    ULONG Blink;
+} LIST_ENTRY32, *PLIST_ENTRY32;
+
+/* 64-bit double linked list structure definition */
+typedef struct _LIST_ENTRY64
+{
+    ULONGLONG Flink;
+    ULONGLONG Blink;
+} LIST_ENTRY64, *PLIST_ENTRY64;
+
 /* Red-black tree node color enumeration list */
 typedef enum _RTL_BALANCED_NODE_COLOR
 {
@@ -156,6 +186,24 @@ typedef struct _RTL_SHA1_CONTEXT
     UCHAR Buffer[SHA1_BLOCK_SIZE];
 } RTL_SHA1_CONTEXT, *PRTL_SHA1_CONTEXT;
 
+/* Single linked list structure definition */
+typedef struct _SINGLE_LIST_ENTRY
+{
+    PSINGLE_LIST_ENTRY Next;
+} SINGLE_LIST_ENTRY, *PSINGLE_LIST_ENTRY;
+
+/* Header for a sequenced single linked list union definition */
+typedef union _SINGLE_LIST_HEADER
+{
+    ULONGLONG Alignment;
+    struct
+    {
+        SINGLE_LIST_ENTRY Next;
+        USHORT Depth;
+        USHORT Sequence;
+    };
+} SINGLE_LIST_HEADER, *PSINGLE_LIST_HEADER;
+
 /* Runtime time fields structure definition */
 typedef struct _TIME_FIELDS
 {
diff --git a/sdk/xtdk/xtbase.h b/sdk/xtdk/xtbase.h
index 259dcfc..be5cf74 100644
--- a/sdk/xtdk/xtbase.h
+++ b/sdk/xtdk/xtbase.h
@@ -41,54 +41,6 @@ typedef ULONG_PTR PFN_NUMBER, *PPFN_NUMBER;
 /* Physical address */
 typedef LARGE_INTEGER PHYSICAL_ADDRESS, *PPHYSICAL_ADDRESS;
 
-/* 128-bit buffer containing a unique identifier value */
-typedef struct _GUID
-{
-    UINT Data1;
-    USHORT Data2;
-    USHORT Data3;
-    UCHAR Data4[8];
-} GUID, *PGUID;
-
-/* Double linked list structure definition */
-typedef struct _LIST_ENTRY
-{
-    PLIST_ENTRY Flink;
-    PLIST_ENTRY Blink;
-} LIST_ENTRY, *PLIST_ENTRY;
-
-/* 32-bit double linked list structure definition */
-typedef struct _LIST_ENTRY32
-{
-    ULONG Flink;
-    ULONG Blink;
-} LIST_ENTRY32, *PLIST_ENTRY32;
-
-/* 64-bit double linked list structure definition */
-typedef struct _LIST_ENTRY64
-{
-    ULONGLONG Flink;
-    ULONGLONG Blink;
-} LIST_ENTRY64, *PLIST_ENTRY64;
-
-/* Single linked list structure definition */
-typedef struct _SINGLE_LIST_ENTRY
-{
-    PSINGLE_LIST_ENTRY Next;
-} SINGLE_LIST_ENTRY, *PSINGLE_LIST_ENTRY;
-
-/* Header for a sequenced single linked list union definition */
-typedef union _SINGLE_LIST_HEADER
-{
-    ULONGLONG Alignment;
-    struct
-    {
-        SINGLE_LIST_ENTRY Next;
-        USHORT Depth;
-        USHORT Sequence;
-    };
-} SINGLE_LIST_HEADER, *PSINGLE_LIST_HEADER;
-
 /* 128-bit 16-byte aligned XMM register */
 typedef struct _M128
 {
@@ -96,26 +48,5 @@ typedef struct _M128
     LONGLONG High;
 } ALIGN(16) M128, *PM128;
 
-/* Dispatcher object header structure definition */
-typedef struct _DISPATCHER_HEADER
-{
-    union
-    {
-        struct
-        {
-            UCHAR Type;
-            UCHAR Absolute;
-            UCHAR Size;
-            union {
-                UCHAR Inserted;
-                BOOLEAN DebugActive;
-            };
-        };
-        VOLATILE LONG Lock;
-    };
-    LONG SignalState;
-    LIST_ENTRY WaitListHead;
-} DISPATCHER_HEADER, *PDISPATCHER_HEADER;
-
 #endif /* __XTOS_ASSEMBLER_ */
 #endif /* __XTDK_XTBASE_H */