Why find.exe not work in Windows 7?

My find.exe in Windows 7 can not find anything.

C:\topo\server\bin>echo "hello" | find "h"

C:\topo\server\bin>

I copied a find.exe from Windows XP, doesn't work too.

Answer

Ok, I find the answer, because I set the code page of the cmd.exe to 65001(UTF-8), after I change back the code page , the find works ok.

So, It's another question, why find not work after change code page. I will ask it in another question.