That is correct sir, well roughly.
Many performance counters are exposed
in the registry INSERT(HKEY_DYN_DATA\PerfStats)
Win32 is too general, NT and 9x differ
greatly in their counters. For an example
(one of my favorite apps) on different Win32 platforms.
I can speak most authoritatively about NT,
as I used this chez my former employer. There
is a (nonstandard on 4.0 IIRC) Microsoft dll (perf something or other) that provides
the basic hooks for this. It was required for both
VB and Java apps that accessed the performance data.
perl -pe "s/\b;([st])/'\1/mg"