This is a rare collector's item - factory sealed.

The product is a brand new, sealed version of Microsoft Visual Basic 4.0 Professional Upgrade for Windows. It is a software development tool designed for use on Microsoft Windows operating systems. The minimum requirements include 16 MB of RAM, a 486DX/66 processor, and 76 MB of hard drive space. The platform is specifically for Windows, and the language is English. This version is categorized as Commercial and comes in CD format.