Create custom code and plug-ins for load tests
A custom plug-in uses code that you write and attach to a load test or a Web performance test. You can use the load test API and the Web Performance test API to create custom plug-ins for tests to expand to the built-in functionality.
In this version, you can add multiple plug-ins to your load test. Prior to Visual Studio Ultimate 2010, you were limited to using only one plug-in per load test. You no longer have to place all of your add-in code into the same plug-in.
Visual Studio Enterprise
Create a custom plug-in for your load test: You can use load test API to create a custom plug-in to add more testing functionality to your load test.
Create a custom plug-in for your Web Performance test: You can use Web performance test API to create a custom plug-in to add more testing functionality to your Web performance test, including at the request level. You can also create a Web Service test.
Additionally, you can create a Web recorder plug-in that can modify a Web performance test after it is recorded, but before it appears in the Web Performance Test Result Viewer.
Add UI features to Web Performance Test Results Viewer: You can add more UI features to the Web Performance Test Results Viewer using a Visual Studio add-in.
Create a custom HTTP body editor: You can create a custom editor to edit binary or string http XML responses from a web service.