Hi,

When VS2013 is installed you get the following error:
LINK : fatal error LNK1181: cannot open input file 'kernel32.lib' [C:\Source\POC\ExpressApp1\node_modules\contextify\build\contextify.vcxproj]

I've identified a way to fix (well works for me) this looks to be that GYP is not generating correct project options for VS2013. To resolve you just: -

1. npm set rollback false
2. npm install contextify (which will fail)
3. open up node_modules\contextify\build\binding.sln with VS2013 (this will upgrade the project from VS2010 -> VS2013)
4. cd node_modules\contextify
5. node-gyp build
6. npm install contextify

Then you can npm install your modules that are defendant on contextify.

Hope this helps.

Nick