configure ollydbg110 to use microsoft's symbol server.
 

if u don't know what is symbol server or how to use it,u'd better read this first :
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/debug/base/using_symsrv.asp
and optionally read:
http://support.microsoft.com/kb/311503/EN-US/
http://support.microsoft.com/kb/319037/EN-US/

steps to do:
1. install windbg to get newest dbghelp.dll and symsrv.dll and copy them to ollydbg's folder.
2. set the user's or the system's environment varible _NT_SYMBOL_PATH to symsrv*symsrv.dll*c:\websymbols*http://msdl.microsoft.com/download/symbols c:\websymbols is my path,you may replace it with your own.
3. do patch to ollydbg.exe:
new old
0009070A: 02 12
000907EC: EB 74
that's all ok.
your debug session may be slower than before,as symsrv is downloading files from microsoft's web site.

will it work if I have symbol fles on my harddisk?

Would you please drop a note to Oleah? This feature has been requested for ever (and VERY much appreciated!), I wouldn't want to see it get lost the next time he puts out a new version!

Thanks goldenegg !
But when we apply the patch, OllyDbg will not able to load .pdb file of executable file, and we will not able to view source code of .exe file (.asm, .c...)
Regards,
TQN