Several developers have complained that in order to use Visual Studio 6.0’s online help, they must keep the MSDN Library CD in their CD-ROM drive, or copy all 680 MB to their hard disk. Fortunately, this is not the case.
When you install Visual Studio’s MSDN Library, choose the “Custom…” option. You can select which items, if any, you want to install to your hard disk (VB6’s help requires about 12 MB). You can access the help topics on your hard disk without using the MSDN CD; you can still access from the CD any topics you choose not to install.