diff --git a/Makefile.msc b/Makefile.msc
index 6e32eb5124..959ce87de5 100644
--- a/Makefile.msc
+++ b/Makefile.msc
@@ -470,6 +470,17 @@ LTLIBOPTS = /MACHINE:$(PLATFORM)
 #
 !IF $(FOR_WINRT)!=0
 LTLINKOPTS = $(LTLINKOPTS) /APPCONTAINER
+!IF "$(VISUALSTUDIOVERSION)"=="12.0"
+!IF "$(PLATFORM)"=="x86"
+LTLINKOPTS = $(LTLINKOPTS) "/LIBPATH:$(VCINSTALLDIR)\lib\store"
+!ELSEIF "$(PLATFORM)"=="x64"
+LTLINKOPTS = $(LTLINKOPTS) "/LIBPATH:$(VCINSTALLDIR)\lib\store\amd64"
+!ELSEIF "$(PLATFORM)"=="ARM"
+LTLINKOPTS = $(LTLINKOPTS) "/LIBPATH:$(VCINSTALLDIR)\lib\store\arm"
+!ELSE
+LTLINKOPTS = $(LTLINKOPTS) "/LIBPATH:$(VCINSTALLDIR)\lib\store"
+!ENDIF
+!ENDIF
 !ENDIF
 
 # If either debugging or symbols are enabled, enable PDBs.
diff --git a/manifest b/manifest
index 63bfd76595..7a2b798e56 100644
--- a/manifest
+++ b/manifest
@@ -1,9 +1,9 @@
-C Fix\sthe\s"const"\squalifiers\son\sthe\spragma\sname\stable.
-D 2013-09-13T21:03:46.000
+C VSIX\stooling\schanges\sto\ssupport\sVisual\sStudio\s2013.
+D 2013-09-13T22:38:54.996
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in 5e41da95d92656a5004b03d3576e8b226858a28e
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
-F Makefile.msc a97163524522cd829cb91bcf900d07608e025502
+F Makefile.msc 9af063716f726a73b5d5c98c69ea97eca6a9369b
 F Makefile.vxworks db21ed42a01d5740e656b16f92cb5d8d5e5dd315
 F README cd04a36fbc7ea56932a4052d7d0b7f09f27c33d6
 F VERSION a8d1f6839521130dc73c5408cdd24bcfd791df34
@@ -1067,7 +1067,7 @@ F test/win32lock.test 7a6bd73a5dcdee39b5bb93e92395e1773a194361
 F test/win32longpath.test e2aafc07e6990fe86c69be22a3d1a0e210cd329b
 F test/zeroblob.test caaecfb4f908f7bc086ed238668049f96774d688
 F test/zerodamage.test 209d7ed441f44cc5299e4ebffbef06fd5aabfefd
-F tool/build-all-msvc.bat c55f64ca200308fb5fa5c1ee751ea95a13977b5a x
+F tool/build-all-msvc.bat 38623a30fd58288fda5cc7f7df2682aaab75c9d5 x
 F tool/build-shell.sh 950f47c6174f1eea171319438b93ba67ff5bf367
 F tool/checkSpacing.c 810e51703529a204fc4e1eb060e9ab663e3c06d2
 F tool/diffdb.c 7524b1b5df217c20cd0431f6789851a4e0cb191b
@@ -1087,7 +1087,7 @@ F tool/mksqlite3c-noext.tcl 8bce31074e4cbe631bb7676526a048335f4c9f02
 F tool/mksqlite3c.tcl d344cc3144a0271cd853c5e3df36e9f31d78d619
 F tool/mksqlite3h.tcl ba24038056f51fde07c0079c41885ab85e2cff12
 F tool/mksqlite3internalh.tcl 3dca7bb5374cee003379b8cbac73714f610ef795
-F tool/mkvsix.tcl 0be7f7a591f1e83f9199cb82911b66668ca484c9
+F tool/mkvsix.tcl f3312df26fd9938a27fa0a845ec96bea84b0c16b
 F tool/offsets.c fe4262fdfa378e8f5499a42136d17bf3b98f6091
 F tool/omittest.tcl 4665982e95a6e5c1bd806cf7bc3dea95be422d77
 F tool/opcodeDoc.awk b3a2a3d5d3075b8bd90b7afe24283efdd586659c
@@ -1113,8 +1113,8 @@ F tool/vdbe-compress.tcl f12c884766bd14277f4fcedcae07078011717381
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
 F tool/wherecosttest.c f407dc4c79786982a475261866a161cd007947ae
-F tool/win/sqlite.vsix 97894c2790eda7b5bce3cc79cb2a8ec2fde9b3ac
-P c326356f9a18bff5cf36bd59331e2cc207e349fa
-R 6d68ea4b4eed042d0b1e391d74292a44
-U drh
-Z 7d8db2c2ae40e3aff65c381f48f9b82a
+F tool/win/sqlite.vsix 030f3eeaf2cb811a3692ab9c14d021a75ce41fff
+P b74e6be818fa7d19f1af6d86ad1d2ecba334b01b fca799f03ad04b7d36381108ff10e9c7d03656ac
+R 9e6e7e0f9571c29585f149538dcfb35c
+U mistachkin
+Z f3e6e538e403fc9d8d7765b42116a05f
diff --git a/manifest.uuid b/manifest.uuid
index 9ec1c5a1ee..31a5e47f58 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-b74e6be818fa7d19f1af6d86ad1d2ecba334b01b
\ No newline at end of file
+d56fac40313e7d2e77dac3e2bc47cbbb3d10c656
\ No newline at end of file
diff --git a/tool/build-all-msvc.bat b/tool/build-all-msvc.bat
index c433435779..ed05f959fe 100755
--- a/tool/build-all-msvc.bat
+++ b/tool/build-all-msvc.bat
@@ -203,8 +203,8 @@ SET TOOLPATH=%gawk.exe_PATH%;%tclsh85.exe_PATH%
 %_VECHO% ToolPath = '%TOOLPATH%'
 
 REM
-REM NOTE: Check for MSVC 2012 because the Windows SDK directory handling is
-REM       slightly different for that version.
+REM NOTE: Check for MSVC 2012/2013 because the Windows SDK directory handling
+REM       is slightly different for those versions.
 REM
 IF "%VisualStudioVersion%" == "11.0" (
   REM
@@ -214,6 +214,14 @@ IF "%VisualStudioVersion%" == "11.0" (
   IF NOT DEFINED NSDKLIBPATH (
     SET SET_NSDKLIBPATH=1
   )
+) ELSE IF "%VisualStudioVersion%" == "12.0" (
+  REM
+  REM NOTE: If the Windows SDK library path has already been set, do not set
+  REM       it to something else later on.
+  REM
+  IF NOT DEFINED NSDKLIBPATH (
+    SET SET_NSDKLIBPATH=1
+  )
 ) ELSE (
   CALL :fn_UnsetVariable SET_NSDKLIBPATH
 )
@@ -351,7 +359,12 @@ FOR %%P IN (%PLATFORMS%) DO (
             CALL :fn_AppendVariable NSDKLIBPATH \lib\x86
           ) ELSE IF DEFINED WindowsSdkDir (
             CALL :fn_CopyVariable WindowsSdkDir NSDKLIBPATH
-            CALL :fn_AppendVariable NSDKLIBPATH \lib\win8\um\x86
+
+            IF "%VisualStudioVersion%" == "12.0" (
+              CALL :fn_AppendVariable NSDKLIBPATH \lib\winv6.3\um\x86
+            ) ELSE (
+              CALL :fn_AppendVariable NSDKLIBPATH \lib\win8\um\x86
+            )
           )
         )
 
diff --git a/tool/mkvsix.tcl b/tool/mkvsix.tcl
index e9f1f818da..77ec4b15c6 100644
--- a/tool/mkvsix.tcl
+++ b/tool/mkvsix.tcl
@@ -65,12 +65,12 @@
 # argument is optional and if present must contain the name of the directory
 # containing the root of the source tree for SQLite.  The third argument is
 # optional and if present must contain the flavor the VSIX package to build.
-# Currently, the only supported package flavors are "WinRT" and "WP80".  The
-# fourth argument is optional and if present must be a string containing a list
-# of platforms to include in the VSIX package.  The format of the platform list
-# string is "platform1,platform2,platform3".  Typically, when on Windows, this
-# script is executed using commands similar to the following from a normal
-# Windows command prompt:
+# Currently, the only supported package flavors are "WinRT", "WinRT81", and
+# "WP80".  The fourth argument is optional and if present must be a string
+# containing a list of platforms to include in the VSIX package.  The format
+# of the platform list string is "platform1,platform2,platform3".  Typically,
+# when on Windows, this script is executed using commands similar to the
+# following from a normal Windows command prompt:
 #
 #                         CD /D C:\dev\sqlite\core
 #                         tclsh85 tool\mkvsix.tcl C:\Temp
@@ -255,18 +255,32 @@ if {[string equal -nocase $packageFlavor WinRT]} then {
   set shortName SQLite.WinRT
   set displayName "SQLite for Windows Runtime"
   set targetPlatformIdentifier Windows
+  set targetPlatformVersion v8.0
+  set minVsVersion 11.0
   set extraSdkPath ""
   set extraFileListAttributes [appendArgs \
       "\r\n    " {AppliesTo="WindowsAppContainer"} \
       "\r\n    " {DependsOn="Microsoft.VCLibs, version=11.0"}]
+} elseif {[string equal -nocase $packageFlavor WinRT81]} then {
+  set shortName SQLite.WinRT81
+  set displayName "SQLite for Windows Runtime (Windows 8.1)"
+  set targetPlatformIdentifier Windows
+  set targetPlatformVersion v8.1
+  set minVsVersion 12.0
+  set extraSdkPath ""
+  set extraFileListAttributes [appendArgs \
+      "\r\n    " {AppliesTo="WindowsAppContainer"} \
+      "\r\n    " {DependsOn="Microsoft.VCLibs, version=12.0"}]
 } elseif {[string equal -nocase $packageFlavor WP80]} then {
   set shortName SQLite.WP80
   set displayName "SQLite for Windows Phone"
   set targetPlatformIdentifier "Windows Phone"
+  set targetPlatformVersion v8.0
+  set minVsVersion 11.0
   set extraSdkPath "\\..\\$targetPlatformIdentifier"
   set extraFileListAttributes ""
 } else {
-  fail "unsupported package flavor, must be \"WinRT\" or \"WP80\""
+  fail "unsupported package flavor, must be \"WinRT\", \"WinRT81\", or \"WP80\""
 }
 
 if {$argc >= 4} then {
diff --git a/tool/win/sqlite.vsix b/tool/win/sqlite.vsix
index 93eefac2db..ac4afb3f4b 100644
Binary files a/tool/win/sqlite.vsix and b/tool/win/sqlite.vsix differ