gdasetup.exe

What is it?
The GUIdumpASN application allows you to view / print a human readable version of an ASN.1 file. You can save the output of the application as a text file, and you can configure some options on how the output will look. The application supports drag-and-drop, so you can run the application and drop a file on it to display the ASN.1. You can also associate file extensions with the application to allow immediate launch when a certain file type is double-clicked.

The underlying software (dumpasn1.c) was written by Peter Gutmann (pgut001@cs.auckland.ac.nz), and can be found on Peter Gutmann’s homepage. Gemini Security Solutions converted the code for use in a Windows GUI application.