Alternatively, you can install HttpMaster using Chocolatey package manager.
C:\> choco install httpmaster-professional
C:\> choco install httpmaster-express
You can browse product documentation without installing HttpMaster.
To use downloaded sample project, extract 'sample.hmpr' file contained in the zip and open it in HttpMaster. For more information about the sample project, read its description in project properties and description of each project request item.