npm install EACCES error on windows - node.js

Question

I've tried to run cmd as administrator, to change permissions on nodejs folder in Program Files, to login as Administrator, to runas /norprofile..., even to run command in safe mode. Always the same error when I run "npm install uglify-js".
C:\Users\user123>npm install uglify-js
npm ERR! Error: connect EACCES
npm ERR! at errnoException (net.js:904:11)
npm ERR! at Object.afterConnect [as oncomplete] (net.js:895:19)
npm ERR! { [Error: connect EACCES] code: 'EACCES', errno: 'EACCES', syscall: 'connect' }
npm ERR!
npm ERR! Please try running this command again as root/Administrator.
npm ERR! System Windows_NT 6.1.7601
npm ERR! command "C:\\Program Files\\nodejs\\\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "uglify-js"
npm ERR! cwd C:\Users\user123
npm ERR! node -v v0.10.32
npm ERR! npm -v 1.4.28
npm ERR! syscall connect
npm ERR! code EACCES
npm ERR! errno EACCES
npm ERR! stack Error: connect EACCES
npm ERR! stack at errnoException (net.js:904:11)
npm ERR! stack at Object.afterConnect [as oncomplete] (net.js:895:19)
npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR! C:\Users\user123\npm-debug.log
npm ERR! not ok code 0
C:\Users\user123>
Anybody have an idea how to solve this?

Answer 1

After turn off the kaspersky, it can connect the server to download node modules

Answer 2

As noted above:
The problem was with windows firewall which I was not aware it was turned on. Now I turned it off, and without any problems, npm installed desired package.
References
npm wiki: Troubleshooting
Microsoft C Runtime Library Reference: ErrNo Constants
Microsoft C Runtime Library Reference: Global Variables - errno, _doserrno, _sys, errlist, and_sys_errlist

Answer 3

In my case, I get a similar error but for a Nodejs program that continuously connects to MongoLab (not just installing or updating a module)... so I added a Windows firewall exception specifically for Nodejs, and the host and port my program is connecting to.