Windows 3.00a is the widely available version of Windows 3.0, released on October 31, 1990. This version contained an improved ability to move pieces of data greater than 64KB (the original release could only manipulate one segment of RAM at a time). It also improved stability by reducing Unrecoverable Application Errors (UAEs) associated with networking, printing, and low-memory conditions. This version appears as "Windows 3.00a" in Help/About Windows system dialogs.
