'Adds possibly multiple paths to the paths attribute of the query,
does this by calling the standard counter browsing dialogue.  Within
this dialogue, find the counter you want to log, and click: Add,
repeat for every path you want to log, then click on close.  The
paths are appended to the non-volatile paths list for this class,
subclasses may create a function which parses the paths and decides
(via heuristics) whether to add the path to the volatile or non-volatile
path list.
e.g.:
query.addcounter()'

def addcounterbybrowsing(self, flags=win32pdh.PERF_DETAIL_WIZARD, windowtitle='Python    Browser'):

    win32pdh.BrowseCounters(None, 0, self.paths.append, flags, windowtitle)
