How to work with Silverlight based applications

HP QTP 10 directly does not support Silverlight based applications. If we try to automate QTP will record like the following:

We have to download patch, QTPNET_00018 is available for download from HP SSO: http://support.openview.hp.com/selfsolve/document/KM742931?searchIdentifier=16a3ba4f%3a1220cafa517%3a-20fd&resultType=document&documentURL=KM742931&resultsURL=%2fselfsolve%2fpatches&allowReturn=true

Now we will see QTP Add-in Manager as follows:

Now with Silverlight Add-in the recorded one looks as follows: