> let's say I want to filter all files which are
> bigger than 100kb
> neither command line switch "--max-files=100000" nor
> "m, 100000,100000" nor "-*.*[<100]" are NOT
> working.

max files limits the number not size
-*.*[<100] rejects files smaller than 100 KB (most html)

Try -*[>100]

> I am speaking about command line version = without
> GUI.

Same syntax.  Set the options in the GUI, last page check "Save settings only" 
Doit.log has the equivalent command line arguments

> 3.33 version. In 3.42 it is also not working. and
> plus in 3.42 multi-threading is not working even
> with switch "--disable-security-limits"

Stay with 3.33. I reported problems with speed in Feb
<http://forum.httrack.com/readmsg/15842>

> Dear software author, please pay your attention to
> it.

You get with you pay for.