Side by Side Installation": Installing Multiple Versions of Visual Studio 6.0 Products on the Same Computer
Visual Studio products with the same version and in the same language—Visual C++ and Visual Basic version 6.0 in English, for example—can be installed separately on the same workstation. Such installations are supported by Microsoft. The Visual Studio 6.0 Installation Wizard detects if other versions of the 6.0 product line have been installed on a developer's workstation.
Mixing different language versions, point releases, or product tiers on the same workstation is generally not supported. This means that the installation may fail, one or more of Visual Studio 6.0 products may not work even if the installation succeeds, or in the worst case you may not be able to uninstall any of the products completely.
这是他提示我看的 ,我该怎么办啊? 最近我装了一个二级题库 ,还有一个虚拟光驱 。。