diff --git a/reactos/include/psdk/ntdef.h b/reactos/include/psdk/ntdef.h
index d0a0760f372..efa3a50e6c1 100644
--- a/reactos/include/psdk/ntdef.h
+++ b/reactos/include/psdk/ntdef.h
@@ -766,4 +766,24 @@ typedef struct _GROUP_AFFINITY {
 #define LANG_YORUBA                      0x6a
 #define LANG_ZULU                        0x35
 
+#define VER_WORKSTATION_NT               0x40000000
+#define VER_SERVER_NT                    0x80000000
+
+#define VER_SUITE_SMALLBUSINESS            1
+#define VER_SUITE_ENTERPRISE               2
+#define VER_SUITE_BACKOFFICE               4
+#define VER_SUITE_COMMUNICATIONS           8
+#define VER_SUITE_TERMINAL                 16
+#define VER_SUITE_SMALLBUSINESS_RESTRICTED 32
+#define VER_SUITE_EMBEDDEDNT               64
+#define VER_SUITE_DATACENTER               128
+#define VER_SUITE_SINGLEUSERTS             256
+#define VER_SUITE_PERSONAL                 512
+#define VER_SUITE_BLADE                    1024
+#define VER_SUITE_EMBEDDED_RESTRICTED      2048
+#define VER_SUITE_SECURITY_APPLIANCE       4096
+#define VER_SUITE_STORAGE_SERVER           8192
+#define VER_SUITE_COMPUTE_SERVER           16384
+#define VER_SUITE_WH_SERVER                32768
+
 #endif /* _NTDEF_ */
diff --git a/reactos/include/psdk/winnt.h b/reactos/include/psdk/winnt.h
index a9f9d1717d9..eb034ff0e2f 100644
--- a/reactos/include/psdk/winnt.h
+++ b/reactos/include/psdk/winnt.h
@@ -1804,6 +1804,8 @@ typedef enum {
 #define VER_AND 6
 #define VER_OR 7
 #endif
+#define VER_SERVER_NT 0x80000000
+#define VER_WORKSTATION_NT 0x40000000
 #define VER_PLATFORM_WIN32s 0
 #define VER_PLATFORM_WIN32_WINDOWS 1
 #define VER_PLATFORM_WIN32_NT 2
@@ -1813,6 +1815,7 @@ typedef enum {
 #define VER_SUITE_SMALLBUSINESS 1
 #define VER_SUITE_ENTERPRISE 2
 #define VER_SUITE_BACKOFFICE 4
+#define VER_SUITE_COMMUNICATIONS 8
 #define VER_SUITE_TERMINAL 16
 #define VER_SUITE_SMALLBUSINESS_RESTRICTED 32
 #define VER_SUITE_EMBEDDEDNT 64
@@ -1820,6 +1823,11 @@ typedef enum {
 #define VER_SUITE_SINGLEUSERTS 256
 #define VER_SUITE_PERSONAL 512
 #define VER_SUITE_BLADE 1024
+#define VER_SUITE_EMBEDDED_RESTRICTED 2048
+#define VER_SUITE_SECURITY_APPLIANCE 4096
+#define VER_SUITE_STORAGE_SERVER 8192
+#define VER_SUITE_COMPUTE_SERVER 16384
+#define VER_SUITE_WH_SERVER 32768
 #define WT_EXECUTEDEFAULT 0x00000000
 #define WT_EXECUTEINIOTHREAD 0x00000001
 #define WT_EXECUTEINUITHREAD 0x00000002