Add guide lines to Visual Studio text editor at code indents

Run RegEdit.exe and locate the following entry (Substitute 8.0 with the version installed on the computer):

HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\8.0\Text Editor

Add a string value called Guides containing the following:

RGB(0,255,255) 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64

The next time Visual Studio is opened, the text editor will show aqua colored vertical lines where the code indents are located. The first two are ignored because they are so common.