async is a multi-threaded activex component that gives visual basic developers the ability to easiily create multi-threaded applications and components without the complexities normally involved. async provides all the features needed to create a professional multi-threaded application or dll. async is distributed as an activex control and as a com dll to maximize your ability to write the best possible applications and components. error events, process completion events and communication events are provided for each thread. priority can be set for each thread. threads can be queued. includes a detailed help file (including some basic information on multi-threading), comprehensive example programs, a royalty-free re-distributable setup program and license to distribute your applications and / or components royalty-free. free support and upgrades to registered users. 30 day money back guarantee. compatible with all 32 bit windows operating systems. works with ms visual basic versions 5 and 6.