# Installing Processing 4.5.6 for Windows - reading licences

**URL:** <https://discourse.processing.org/t/installing-processing-4-5-6-for-windows-reading-licences/49231>\
**Category:** Beginners\
**Created:** [August 21, 2026, 8:07am UTC](https://discourse.processing.org/t/installing-processing-4-5-6-for-windows-reading-licences/49231 "2026-08-21T08:07:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jsampson45](https://avatars.discourse-cdn.com/v4/letter/j/77aa72/32.png) [@jsampson45](https://discourse.processing.org/u/jsampson45)\
**Post date:** [August 21, 2026, 8:07am UTC](https://discourse.processing.org/t/installing-processing-4-5-6-for-windows-reading-licences/49231/1 "2026-08-21T08:07:45Z")

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I see that there are nine licences

to read in installng Processing for Windows.

Is there an estimate how long it takes to read them?

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**Author:** ![josephh](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/josephh/32/210_2.png) [@josephh](https://discourse.processing.org/u/josephh)\
**Post date:** [September 18, 2026, 3:57pm UTC](https://discourse.processing.org/t/installing-processing-4-5-6-for-windows-reading-licences/49231/2 "2026-09-18T15:57:55Z")

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Hi @jsampson45 ,

Why do you need an estimate about time it take to read licenses? Those licenses are well established like GNU GPL v2 or LGPL so you don’t need to read them all.

You can still check them on GitHub:

> **[GitHub - processing/processing4: Source code for Processing, the software...](https://github.com/processing/processing4?tab=License-1-ov-file)**
>
> Source code for Processing, the software sketchbook and Java-based programming language for students, artists, designers, educators, hobbyists, and creative coders. Includes the core library, and editor (PDE)