My test ie6 version is 6.0.2900.2180.xpsp_sp2_gdr.070227-2254

when i do this:

$.get("/IndexAction.do",function(txt){ alert(txt); }

ie thorw then Automation error

when i search in jquery-1.2.3,i found this

var xml = window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();

then i modify it:

try { var xml = window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest(); } catch(e) { try { xml=new ActiveXObject("MSXML2.XMLHTTP"); } catch(e2) { try { xml=new ActiveXObject("MSXML3.XMLHTTP"); } catch(e3) { alert("It's all error"); } } }