thx Negative u r truly helpful but the prob. is that the ISps as i think they give u a spesefic bandwidth like when i am using kazza to download a file the outher pcs in my network working with the same speed but when i am using it to download 50 files that means alot of backets out and in the other pcs cant even browsing ..... (down worry about trojans) and i see my speed with any software its normal not above the normal that means the mater is with the bandwidth not the speed......
please help me and thx for your reply