<p>Is there any way to automatically wrap comments at the 80-column boundary as you type them? ..or failing that, any way to display a faint line at the coulmn 80 boundary to make wrapping them manually a little easier?</p>

<p>Several other IDEs I use have one or other of those functions and it makes writing comments that wrap in sensible places much easier/quicker.</p>

<p><strong>[Edit]</strong> If (like me) you're using Visual C++ Express, you need to change the VisualStudio part of the key into VCExpress - had me confused for a while there!</p>

Take a look at the question here:
Hidden Features of Visual Studio (2005-2010)?
It shows how to do that:
"Under "HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\8.0\Text Editor" Create a String called "Guides" with the value "RGB(255,0,0) 79" to have a red line at column 80 in the text editor."