Inno Setup has supported the RTF format for many years, and in the meantime, the world has moved on quite a bit. Therefore, I would suggest looking into support for the ODT (Open Document) format, or if simplicity is preferred, the MD (Markdown) format. The RTF format has become outdated and should be phased out.
On Tuesday, December 2, 2025, 10:19:55, Erik Falck Jørgensen wrote:
Inno Setup has supported the RTF format for many years, and in the meantime, the world has moved on quite a bit. Therefore, I would suggest looking into support for the ODT (Open Document) format, or if simplicity is preferred, the MD (Markdown) format. The RTF format has become outdated and should be phased out.
This won't happen for a very simple reason: Windows provides a built-in control to display RTF files. If you wanted to display ODT or MarkDown text, you'd either have to write a custom control to display them (which would've unnecessarily bloat the Setup executable), or convert them to RTF first (which is better done manually first, so you can have complete control over the RTF file appearance).
WebView2 for viewing HTML files could be used in theory, but not in practice, as it's not pre-installed on every system that Inno Setup supports.