WARCRAFT 3 dota 0xC0000005 ERROR - PLEASE HELP!!!!

Please help solve this problem: FATAL ERROR! Program:D:Program FilesWarcraft IIIwar3.exe Exception:0xC0000005 (ACCESS_VIOLATION) at 001B:6F40C140 The instruction at &referenced memory at '0x0000003C'. The memory could not be 'read'. I tried to fix in registry, switch movies name, changed sound settings in dxdiag. NOTHING HELPES. Alot of people has this problem. It&really annoying. What I figured it out is that (playing dotA) some heroes like twin head dragon and some others crash the game more often than others. Please don&say this is a graphic problem. I was playing with minimum quality settings. It just doesn&work. I have no viruses and so on... Tried everything. I think this problem came with patches. When first dotA was released I never recieved any errors. Please if somebody has found a solution that is different from what I discribed here please write it down. HELP!! Thank you