> HTtrack is not aware that certain names (of both
> files and directories) are forbidden under windows
> and tries to create them giving rise to serialize
> errors.

Well, some sanity check is done to prevent obvious cases, but some of them
might be missing (see
<http://code.google.com/p/httrack/source/browse/trunk/src/htsname.c#61> )

A defect has been created to check this issue:
<http://code.google.com/p/httrack/issues/detail?id=31>