The VIS systems were sold only at Radio Shack, under the Memorex brand, both of which Tandy owned at the time.

Microsoft intended Modular Windows to be an embedded operating system for various devices, especially those designed to be connected to televisions.

[1] It has been claimed that Microsoft created a new, incompatible version of Modular Windows ("1.1") shortly after the VIS shipped.

[3] Radio Shack store employees jokingly referred to the VIS as "Virtually Impossible to Sell".

[4] Tandy discontinued the product in early 1994 and all remaining units were sold to a liquidator.