New: Draw.io (Jun 2, 2022), Platform 22.0b1 (Jun 10, 2022)
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portable, but i don't believe it's open source
in a year and a half. Does it even still work? I think MSN and Yahoo have messed with their protocols since then.
Sometimes, the impossible can become possible, if you're awesome!
I tried it with AIM yahoo and MSN and all of them connected.
Edit: I just realized it opens a browser page to http://www.spamfreenow.com/ every time the program is started