[python-win32] shell.SHChangeNotify failed to refresh icons

[TK Soh]

I have noticed quite frequently that shell.SHChangeNotify does not
trigger the refreshing of icons on Explorer windows. This happens
mostly when relative large number of shell.SHChangeNotify() calls are
made on files residing in the same folder. I am using pythonwin b210.5
(special test build by Mark), but I believe the problem is also
observed in earlier builds. Any clues or pointer on resolving this
issue? Thanks.