Column guides in Visual Studio

Here are instructions for adding visual column indicators to the Visual Studio editor. This helps when trying to keep your code lines within a certain character limit.

Make the following new registry string values.

For Visual Studio 2003:
Location: [HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\7.1\Text Editor]
String Value: Guides=RGB(128,0,0) 80, 120

For Visual Studio 2005:
Location: [HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\8.0\Text Editor]
String Value: Guides=RGB(128,0,0) 80, 120

This sets column markers at 80 and 120 characters respectively.