Application Switcher 1.0 for Mac can be downloaded from our website for free. The program lies within Developer Tools, more precisely General.
From the developer:
Application Switcher is a REALbasic plug-in that can disable/enable application switching via COMMAND-TAB (ALT-TAB) on windoze
You may want to check out more Mac applications, such as Switcher Cast, Switcher Media Manager or IC-Switch, which might be related to Application Switcher.