Next, the download process. How do French software companies typically distribute their products? Since Covadis is likely used in France, they might require a license key or subscription. Maybe there's a trial version available for free download. I should check if a trial exists and how to access it. Also, mentioning the official site as the only source is crucial to avoid illegal downloads.

I should also consider the user's technical background. Are they a standard user or IT professional? The language should be accessible but thorough.

Additionally, check if there are alternatives if Covadis is not available. But the user specifically asked about Covadis 18, so maybe alternatives aren't needed unless Covadis isn't available in free versions in some regions.

In summary, the write-up needs to inform legally, guide the user through the correct channel, warn against illegal downloads, and provide enough detail to be helpful without leading them to piracy sites. Highlight the importance of official sources and legal compliance.