> I tried several times to mirror the quite complex 
site 
> of DESY (Hamburg, Germany: www.desy.de)within the 
> limits of 4 internal and 2 external levels and no 
> special filter. Every time Httrack hanged after 15 
> minutes and about 850 downloaded files. Is it 
possible 

Which HTTrack version? I tried with 3.16 and seems 
okay:
431 links scanned, 361 files written (2495150 bytes 
overall)

What option did you choose, too? ANy specific filters? 
Any 'experts only' settings?