Alt-Tab Thingy is for Windows XP Only.
Full Release Version

Download Alt-Tab Thingy Full Release Version 3.4.1 MD 5 Hash: D1705071B22F7B2964CB9AE5C7F5C0DA from NymTec.com (Server in USA) ATTv3.4.1.exe, 388 KB License: Freeware Platform: WinXP

Download Alt-Tab Thingy Full Release Version 3.4.0 from Softpedia.com (Multiple Mirrors) ATTv3.4.0.exe, 388 KB License: Freeware Platform: WinXP

Download Alt-Tab Thingy Full Release Version 3.3.0 from PCWorld.com (Server in USA) ATTv3.3.0.exe, 421 KB License: Freeware Platform: WinXP

Download Alt-Tab Thingy Full Release Version 3.4.0 from Filehippo.com (Server in USA) ATTv3.4.0.exe, 388 KB License: Freeware Platform: WinXP

Download Alt-Tab Thingy Full Release Version 3.4.0 from MajorGeeks.com (Multiple Mirrors) ATTv3.4.0.exe, 388 KB License: Freeware Platform: WinXP

Download Alt-Tab Thingy Full Release Version 3.3.0 from Download.com (Server in USA) ATTv3.3.0.exe, 421 KB License: Freeware Platform: WinXP

Please do not link directly to these download links, only link to this page or NymTec.com.