安装LoadRunner 11 后，可以在C:\Program Files\HP\LoadRunner\dat目录下找到介绍LoadRunner新功能的视频，下面逐一介绍：
1、webui.wmv、Movies-TruClient.wmv
介绍LoadRunner11新增的协议Ajax TruClient的使用
Ajax TruClient: An advanced protocol for modern JavaScript based applications
(including Ajax) emulating user activity within a web browser. Scripts are developed
interactively in Mozilla Firefox
类似QTP的脚本录制，在Firefox中进行，不难，但是需要对js、DOM、xpath等有一些认识
2、silverlight.wmv
介绍LoadRunner11新增的Silverlight协议的使用
Silverlight: A new protocol for Silverlight based applications emulating user activity
at the transport level. Allows generating high level scripts by automatically importing
and configuring WSDL files used by the application.
主要提供了两个函数：
silverlight_service_call - Calls a Web service in a Silverlight enviroment.
silverlight_soap_request - Performs a SOAP request in a Silverlight environment.
3、javaoverhttp.wmv
介绍LoadRunner11新增的Java Over HTTP协议的使用
Java over HTTP: A new protocol designed to record java-based applications and applets.
It produces a Java language script using web functions. This protocol is distinguished
from other Java protocols in that it can record and replay Java remote calls over HTTP
Java Over HTTP协议提供了几个函数：
JavaHTTP.sendSerialized - Serializes an object and sends it to the server.
lrapi.lr2.fieldGetter - Reflects an object and returns the value of a field.
lrapi.lr2.fieldSetter - Reflects an object and sets the value of a field.
Java over HTTP functions are used to make java remote invocations over HTTP. Use them
in conjuction with the java languate utility functions and the java language web
function.
4、webtransport.wmv
介绍LoadRunner11的新功能DFE（Data Format Extension）的使用
Data Format Extension (DFE): Enhanced data format capabilities for the Web (HTTP/HTML)
protocol family. Allows converting raw HTTP traffic into a maintainable and structured
XML format and enables correlations by XPATH.
这个功能对于传输数据格式的解析很有帮助作用
提供了一个新的函数web_reg_save_param_xpath用于关联：
Finds data in an HTML buffer that has been formatted as XML and saves the data to a
parameter.
VuGen supports the recording of many different types of data. New formats are
constantly being created and VuGen must adapt to support them. Some formats are
proprietary and use custom serialization, making it difficult for the user to
understand the code due to binary and unformatted data. VuGen has developed a way to
use Data Format Extensions (DFEs) to convert the code to more readable formats allowing
you to parameterize and correlate this data.
Data Format Extensions work in ordered chains. VuGen attempts to deserialize the data
using the DFEs in a chain one at a time. The extensions within a chain are each
designed to deserialize/serialize a specific data format. If an extension does not
convert the specified data, this data is passed to the next extension in the chain. If
an extension does successfuly convert the data, you can configure VuGen to either
continue to run the rest of the DFE chain on the converted data, or to end the process.
可以开发自己的DFE扩展（利用DFE SDK），安装目录中提供了一个Sample（C:\Program
Files\HP\LoadRunner\samples\DataFormatExtension），可以参考着用Visual Studio 2005修改来
完成自定义DFE扩展的开发。
也可以直接使用LoadRunner内置的DFE：
1、Base64 Extension
Decodes strings that are encoded with a BASE64 encoder.
2、URL Encoding Extension
Decodes strings that are encoded with URL encoding format.
3、JSON Extension
Transforms JSON data to XML format.
4、XML Validator Extension
Receives data and checks to see if it conforms with XML syntax. This check
allows VuGen to perform correlations based on xpath and to display snapshot data in an
xml viewer.
5、correlation.wmv
介绍LoadRunner11在关联功能方面的增强
Correlation Studio: Web (HTTP/HTML) automatic correlation mechanism has been enhanced
to search for possible correlations in the larger scope of snapshot data created during
code generation including data formatted by DFE.
新加了一个关联函数web_reg_save_param_ex，支持DFE，建议替代旧的web_reg_save_param
web_reg_save_param_ex replaces the deprecated web_reg_save_param
6、snapshotview.wmv
介绍LoadRunner11在树形视图的Snapshot View的功能增强
Snapshot View: New snapshot view for Web (HTTP/HTML) protocol steps allows viewing
complete HTTP traffic in both raw and DFE generated formats.
HTTPView可以查看到详细的每个HTTP请求，支持DFE数据查看和关联操作
7、slapercentile.wmv
介绍LoadRunner11在SLA功能方面的增强
8、richreports.wmv
介绍LoadRunner11在测试报告方面的功能增强
9、monitors.wmv
介绍LoadRunner11在资源监控方面的功能增强，可以自定义资源监控列表并存成模板
10、analysisusability.wmv
介绍LoadRunner11在analysis模块的易用性增强