IMVironments just landed!! 🤩
IMVironments ("IMVs") are interactive backgrounds that you can add to your IM conversations.
It's been quite the journey to get them working, mostly due to the very little information available online and most of them being essentially lost media.
The publicly archived IMVs (.yim files) have been really helpful in reverse engineering the Cabinet archive signature mechanism as well as the .imv file encryption.
However, because the latest snapshots are from 2005/2006, the code inside the .imv files (JS + HTML) is incompatible with the latest versions of Y!M (8 and above) 
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By June 2025 we already started looking for old second-hand laptops and asking the community if, by any chance, they have access to old PCs with Y!M still installed.
Four laptops, a random PC found in an office and a few archives from our community members later, we managed to gather multiple, more recent, IMVs from around 2012 to 2015. 