Socket.io installation on Win 7 fails

I've installed NodeJs and tried to install Socket.io

Socket.io installation fails consecutively. I've tried several differend NodeJS versions (0.6.15,0.6.16,0.6.17,0.7.8). All fail to install socket.io.

The full log can be found on pastebin.

Console log is:

C:\Program Files (x86)\nodejs>npm install socket.io
npm http GET https://registry.npmjs.org/socket.io
npm http 304 https://registry.npmjs.org/socket.io
npm http GET https://registry.npmjs.org/policyfile/0.0.4
npm http GET https://registry.npmjs.org/socket.io-client/0.9.6
npm http GET https://registry.npmjs.org/redis/0.6.7
npm http 304 https://registry.npmjs.org/socket.io-client/0.9.6
npm http 304 https://registry.npmjs.org/redis/0.6.7
npm http 304 https://registry.npmjs.org/policyfile/0.0.4
npm http GET https://registry.npmjs.org/uglify-js/1.2.5
npm http GET https://registry.npmjs.org/xmlhttprequest/1.2.2
npm http GET https://registry.npmjs.org/active-x-obfuscator/0.0.1
npm http GET https://registry.npmjs.org/ws
npm http 304 https://registry.npmjs.org/uglify-js/1.2.5
npm http 304 https://registry.npmjs.org/xmlhttprequest/1.2.2
npm http 304 https://registry.npmjs.org/active-x-obfuscator/0.0.1
npm http 304 https://registry.npmjs.org/ws
npm http GET https://registry.npmjs.org/zeparser/0.0.5
npm http GET https://registry.npmjs.org/options
npm http GET https://registry.npmjs.org/commander
npm http 304 https://registry.npmjs.org/zeparser/0.0.5
npm http GET https://registry.npmjs.org/zeparser/-/zeparser-0.0.5.tgz
npm http 304 https://registry.npmjs.org/commander
npm http 304 https://registry.npmjs.org/options

> ws@0.4.14 install C:\Program Files (x86)\nodejs\node_modules\socket.io\node_mo
dules\socket.io-client\node_modules\ws
> node install.js

'node' is not recognized as an internal or external command,
operable program or batch file.
npm http 200 https://registry.npmjs.org/zeparser/-/zeparser-0.0.5.tgz

npm ERR! ws@0.4.14 install: `node install.js`
npm ERR! `cmd "/c" "node install.js"` failed with 1
npm ERR!
npm ERR! Failed at the ws@0.4.14 install script.
npm ERR! This is most likely a problem with the ws package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node install.js
npm ERR! You can get their info via:
npm ERR!     npm owner ls ws
npm ERR! There is likely additional logging output above.
npm ERR!
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" "socket.io"
npm ERR! cwd C:\Program Files (x86)\nodejs
npm ERR! node -v v0.7.8
npm ERR! npm -v 1.1.18
npm ERR! code ELIFECYCLE
npm ERR! message ws@0.4.14 install: `node install.js`
npm ERR! message `cmd "/c" "node install.js"` failed with 1
npm ERR! errno {}
npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR!     C:\Program Files (x86)\nodejs\npm-debug.log
npm not ok

Is there a workaround? How can I install Socket.IO on Windows 7 x64?