Werk #3827: windows agent: fixed 3 bugs which broke the skype section

Component Checks & agents
Title windows agent: fixed 3 bugs which broke the skype section
Date Oct 18, 2016
Checkmk Edition Checkmk Raw (CRE)
Checkmk Version 1.4.0i2
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

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