Adium users looking for an alternative for their Windows computers will want to consider an IM client that offers multi-protocol IM support.
For your money, I'd recommend the following multi-protocol IMs as your best Adium for Windows alternative; all of these IMs offer the ability to add multiple IM accounts and communicate with the widest number of friends and family on one IM client:
- Trillian Astra: My most favorite of the multi-protocol IMs. Trillian Astra is as close to Adium on Windows as you will get, especially in terms of fun, easy design and customization features. I would try Trillian Astra first when looking for a Adium for Windows alternative.
- Digsby: Extremely versatile and fun to use, Digsby also offers users the ability to check email, update your Twitter account and even access RSS feeds.
- Pidgin IM: One of the oldest multi-protocol IMs is also one of the most fun. Pidgin (formerly GAIM) offers a light, clean IM experience with access to all the major market IMs, plus MySpaceIM. Also, if you love the Adium duck, check out Pidgin's purple pidgeon!
- Miranda IM: Another light and simple IM, Miranda IM is barebones but allows users to chat with many friends across IM networks without taking up loads of hard drive space.