node-expat: Install error with npm on Windows 7 x64

When I try to install node-expat on my machine, I keep getting a WindowsSDKDir error. I do have the Windows 7 SDK installed, as well as Python (Python variable is set and working since it previously gave me Python problems lol). I’m not sure what the problem is. It could be a node-gyp issue, but it only happens when I install node-expat. I can install (or re-install, perhaps) node-gyp without any issue.

Going by what I can understand from the output log, it seems to be that it can’t find the WindowsSDKDir variable in the registry. However, I can find it in RegEdit. I’ve even tried changing the variable to the Windows 7 SDK directory (C:\Program Files\Microsoft SDKs\v7.1\ or something) instead of what it originally was (C:\Program Files (x86)\Microsoft SDKs\v7.0A). Could the problem be that I have VS2012 not VS2010 installed?

Thanks in advance for any help!

Log appended:

C:\Program Files (x86)\nodejs>npm install node-expat
npm http GET https://registry.npmjs.org/node-expat
npm http 304 https://registry.npmjs.org/node-expat

> node-expat@2.0.0 install C:\Program Files (x86)\nodejs\node_modules\node-expat

> node-gyp rebuild


C:\Program Files (x86)\nodejs\node_modules\node-expat>node "C:\Program Files (x8
6)\nodejs\node_modules\npm\bin\node-gyp-bin\\..\..\node_modules\node-gyp\bin\nod
e-gyp.js" rebuild
Building the projects in this solution one at a time. To enable parallel build,
please add the "/m" switch.
C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\Microsoft.CppBuild.targets(29
7,5): warning MSB8003: Could not find WindowsSDKDir variable from the registry.
  TargetFrameworkVersion or PlatformToolset may be set to an invalid version nu
mber. [C:\Program Files (x86)\nodejs\node_modules\node-expat\build\deps\libexpa
t\expat.vcxproj]
C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\Platforms\Win32\Microsoft.Cpp
.Win32.targets(147,5): error MSB6006: "CL.exe" exited with code -1073741515. [C
:\Program Files (x86)\nodejs\node_modules\node-expat\build\deps\libexpat\expat.
vcxproj]
gyp ERR! build error
gyp ERR! stack Error: `C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
` failed with exit code: 1
gyp ERR! stack     at ChildProcess.onExit (C:\Program Files (x86)\nodejs\node_mo
dules\npm\node_modules\node-gyp\lib\build.js:236:23)
gyp ERR! stack     at ChildProcess.EventEmitter.emit (events.js:99:17)
gyp ERR! stack     at Process._handle.onexit (child_process.js:678:10)
gyp ERR! System Windows_NT 6.1.7601
gyp ERR! command "node" "C:\\Program Files (x86)\\nodejs\\node_modules\\npm\\nod
e_modules\\node-gyp\\bin\\node-gyp.js" "rebuild"
gyp ERR! cwd C:\Program Files (x86)\nodejs\node_modules\node-expat
gyp ERR! node -v v0.8.15
gyp ERR! node-gyp -v v0.7.1
gyp ERR! not ok
npm ERR! node-expat@2.0.0 install: `node-gyp rebuild`
npm ERR! `cmd "/c" "node-gyp rebuild"` failed with 1
npm ERR!
npm ERR! Failed at the node-expat@2.0.0 install script.
npm ERR! This is most likely a problem with the node-expat package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node-gyp rebuild
npm ERR! You can get their info via:
npm ERR!     npm owner ls node-expat
npm ERR! There is likely additional logging output above.

npm ERR! System Windows_NT 6.1.7601
npm ERR! command "C:\\Program Files (x86)\\nodejs\\\\node.exe" "C:\\Program File
s (x86)\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "node-expat"
npm ERR! cwd C:\Program Files (x86)\nodejs
npm ERR! node -v v0.8.15
npm ERR! npm -v 1.1.66
npm ERR! code ELIFECYCLE
npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR!     C:\Program Files (x86)\nodejs\npm-debug.log
npm ERR! not ok code 0