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Supported technologies for the .NET Framework (legacy)


The legacy .NET Framework agent offers the full capabilities of Contrast Assess, Protect, and SCA as of April 2020 but is no longer receiving new features or lower severity bug fixes. Contrast will continue to fix critical bugs in the legacy agent until January 10th, 2023.

The legacy Contrast .NET Framework agent can be used to analyze ASP.NET web applications using the following technologies:


Supported versions

Contrast version

Contrast version 3.7.3 or later

Agent versions

20.4.4 and future versions of 20.4.X


3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8

Application framework

  • ASP.NET MVC 3-5

  • ASP.NET Web Forms

  • ASP.NET Web Pages

  • IIS-Hosted ASMX-based Web Services

  • IIS-Hosted Web API

  • IIS-Hosted WCF Services

Web servers

  • IIS

  • IIS Express