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Changes between Initial Version and Version 1 of Ticket #4010, comment 10

initial	v1
1	1	I took a look at the WMI code and noticed that in a few places you pass wide strings to COM methods. Strictly speaking, this is not correct because COM methods accept BSTRs, which are binary incompatible with wide C strings, unless the method implementation treats them as wide C strings. In particular, if it calls SysStringLen on the argument, the result will be undefined.
2	2
3		FWIW, from [http://article.gmane.org/gmane.comp.lib.boost.devel/208308 this thread] it seems that using WMI has its drawbacks, let alone the complexity. Perhaps, using performance counters would suffice? [http://www.osronline.com/showThread.cfm?link=10513 Here] I found an example of reading a few system counters, of which "\Process(System)\Elapsed Time" might be what you need. ~~I did not dig deep into the code enough~~ though, so this may be of little help to you.
	3	FWIW, from [http://article.gmane.org/gmane.comp.lib.boost.devel/208308 this thread] it seems that using WMI has its drawbacks, let alone the complexity. Perhaps, using performance counters would suffice? [http://www.osronline.com/showThread.cfm?link=10513 Here] I found an example of reading a few system counters, of which "\Process(System)\Elapsed Time" might be what you need. The registry key also looks interesting but I didn't find a way to interpret it (looks like it changed its format in Vista). I did not dig deep enough into the code though, so this may be of little help to you.