Using the right version of MSXML in Internet Explorer

Microsoft XML Team's WebLog : Using the right version of MSXML in Internet Explorer


Try MSXML6 and fallback to MSXML3 – MSXML6 has some improvements that aren’t in MSXML3 such as support for XSD schema, and improved stability, performance, and security. So your app may try out MSXML6 if it is on the box and then “fallback” gracefully. Just remember to test your app with MSXML6 and with MSXML3 so you aren’t surprised when you release your application. Here’s a quick example:

if (Web.Application.get_type() == Web.ApplicationType.InternetExplorer) {
var progIDs = [ 'Msxml2.DOMDocument.6.0', 'Msxml2.DOMDocument.3.0'];

for (var i = 0; i < progIDs.length; i++) {
try {
var xmlDOM = new ActiveXObject(progIDs[i]);
return xmlDOM;
}
catch (ex) {
}
}

return null;
}