Rnaviz 2.0 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. This free software is an intellectual property of Peter De Rijk. The software lies within Development Tools, more precisely Help. The following version: 2.0 is the most frequently downloaded one by the program users. We recommend checking the downloaded files with any free antivirus.
From the developer:
RnaViz is a user-friendly, portable, GUI program for producing publication-quality secondary structure drawings of RNA molecules. Drawings can be created starting from DCSE alignment files if they incorporate structure information or from mfold ct files. The layout of a structure can be changed easily. Display of special structural elements such as pseudo-knots or unformatted areas is possible.
You may want to check out more software, such as CopySourceAsHtml, Help Generator for Visual Studio 2005 or Shelled!, which might be related to Rnaviz.