diff --git a/Docs/src/history.but b/Docs/src/history.but
index 8237ec43..08e34590 100644
--- a/Docs/src/history.but
+++ b/Docs/src/history.but
@@ -18,6 +18,8 @@ Released on ?
 
 \b FileReadByte no longer performs a Unicode conversion on non-ASCII characters
 
+\b Windows 8.1 & 2012R2 support in WinVer.nsh
+
 \b Fixed !define Unicode null terminator bug (\W{http://sf.net/p/nsis/bugs/1079/}{bug #1079})
 
 \b Unicode stubs create WCHAR richedit controls (\W{http://sf.net/p/nsis/bugs/1080/}{bug #1080})
diff --git a/Include/WinVer.nsh b/Include/WinVer.nsh
index 09753912..963587ec 100644
--- a/Include/WinVer.nsh
+++ b/Include/WinVer.nsh
@@ -34,6 +34,8 @@
 ;   2008R2
 ;   8
 ;   2012
+;   8.1
+;   2012R2
 ;
 ; AtLeastServicePack checks if the installer is running on Windows service pack version at least as specified.
 ; IsServicePack checks if the installer is running on Windows service pack version exactly as specified.
@@ -122,7 +124,7 @@
 ;define WINVER_98SE      0x040a0000 ;4.10.2222
 !define WINVER_ME_NT     0x045a0000 ;4.90.3000
 !define WINVER_ME        0x045a0000 ;4.90.3000
-;define WINVER_NT3d51               ;3.51.1057
+;define WINVER_NT3.51               ;3.51.1057
 !define WINVER_NT4_NT    0x84000000 ;4.00.1381
 !define WINVER_NT4       0x04000000 ;4.00.1381
 !define WINVER_2000_NT   0x85000000 ;5.00.2195
@@ -144,6 +146,10 @@
 !define WINVER_8         0x06020000 ;6.02.9200
 !define WINVER_2012_NT   0x86020001 ;6.02.9200
 !define WINVER_2012      0x06020001 ;6.02.9200
+!define WINVER_8.1_NT    0x86030000 ;6.03.9600
+!define WINVER_8.1       0x06030000 ;6.03.9600
+!define WINVER_2012R2_NT 0x86030001 ;6.03.9600
+!define WINVER_2012R2    0x06030001 ;6.03.9600
 
 
 # use this to make all nt > 9x
@@ -402,6 +408,8 @@
   !insertmacro __WinVer_DefineOSTest ${Test} 2008R2 '${Suffix}'
   !insertmacro __WinVer_DefineOSTest ${Test} 8      '${Suffix}'
   !insertmacro __WinVer_DefineOSTest ${Test} 2012   '${Suffix}'
+  !insertmacro __WinVer_DefineOSTest ${Test} 8.1    '${Suffix}'
+  !insertmacro __WinVer_DefineOSTest ${Test} 2012R2 '${Suffix}'
 !macroend
 
 !insertmacro __WinVer_DefineOSTests AtLeast ""