common.kll killTree == true uses ps-tree which is a unix only module

[npeeples]

TBH, not really sure if there is a way around this. If you set killTree: false, then common.kill will work correctly.

[airandfingers]

An added issue with the ps-tree module is that, per indexzero/ps-tree#6, it is unlicensed - its owner @indexzero has not posted a license for the module, so it's not kosher for use in some environments.

[kusakt]

Isn't it better to disable killTree option on Windows? At least for now? It took me sometime to figure out the problem when i was choosing a wrapper module that works on the both development(windows) and production(linux) .