Problem building on Win7 - "Fatal error: spawn ENOENT"

[streamside]

When trying to build I get the error "Fatal error: spawn ENOENT". With verbose and debug enabled I get some more details.

grunt -dv results in:

...
Running "bower:install" (bower) task
[D] Task source: C:\repos\selectize.js\node_modules\grunt-bower-cli\tasks\bower-
cli.js
Options: action="install", directory="bower_components", args=[]
Fatal error: spawn ENOENT

node -v
v0.10.28

npm -v
1.4.9

bower -v
1.3.3

Any help is appreciated!