Wamp PHP5.2.11 + xdebug : php_xdebug-2.0.5-5.2.dll

load successfully when apache service start.
work fine in Eclipse and debug step trace fine until end.

Wamp PHP4.4.6 + xdebug : php_xdebug-2.0.2-4.4.6.dll
it loaded successfully that i confirm in phpinfo();

information below

This program makes use of the Zend Scripting Language Engine:
Zend Engine v1.3.0, Copyright (c) 1998-2004 Zend Technologies with Xdebug v2.0.2, Copyright (c) 2002-2007, by Derick Rethans

but it won't work fine when i use Eclipse.
especially happend when i debug by step into trace end or when i repoen [variable] window(Alt+Shift+Q, V) to reload variable.

windows event viewer recorded this error.

event : APPCRASH
application : php.exe
application version : 4.4.6.6

module : ntdll.dll
module ver : 6.1.7600.16385

exception code : c0000005

applicaton path : C:\wamp\bin\php\php4.4.6\php.exe
module path : C:\Windows\SysWOW64\ntdll.dll