Drag the files / folders from Windows Explorer into the Solution Explorer. It will add them all. Note this doesn't work if Visual Studio is in Administrator Mode, because Windows Explorer is a User Mode process.
This is originally from Sara's blog.
It also works with almost any version of Visual Studio, you just need to change the "8.0" in the registry key to the appropriate version number for your version of Visual Studio.
The guide line shows up in the Output window too. (Visual Studio 2010 corrects this, and the line only shows up in the code editor window.)
You can also have the guide in multiple columns by listing more than one number after the color specifier:
RGB(230,230,230), 4, 80
Puts a white line at column 4 and column 80. This should be the value of a string value Guides
in "Text Editor" key (see bellow).
Be sure to pick a line color that will be visisble on your background. This color won't show up on the default background color in VS. This is the value for a light grey: RGB(221, 221, 221).
Here are the registry keys that I know of:
Visual Studio 2010: HKCU\Software\Microsoft\VisualStudio\10.0\Text Editor
Visual Studio 2008: HKCU\Software\Microsoft\VisualStudio\9.0\Text Editor
Visual Studio 2005: HKCU\Software\Microsoft\VisualStudio\8.0\Text Editor
Visual Studio 2003: HKCU\Software\Microsoft\VisualStudio\7.1\Text Editor
For those running Visual Studio 2010, you may want to install the following extensions rather than changing the registry yourself:
These are also part of the Productivity Power Tools, which includes many other very useful extensions.
Best Answer
You can get VS 2012 working with Office 2007. First create an Outlook 2010 Add-In and modify the project file (.csproj) so that it will open in Office 2007 and not look for Office 2010 when run.
Here is the project settings change (Outlook example):
Source XPath:
Old Value (Office 2010):
New Value (Office 2007):
After changing this project setting, when you fire up the debugger (F5) it will load the Outlook 2007 application instead of looking for Outlook 2010.
One of the major drawbacks to using VS 2012 for Office development is that deployment is now using InstallShield LE instead of Visual Studio Setup Projects. This is a major shift, but it seems MS is moving away from supporting native installers and letting others manage this burden. WiX is an alternative installer, but I have not tried it out. WiX (Windows Installer XML) still lacks the UI that is present with InstallShield LE or VS 2010 Setup Projects.
The only advantage of using VS 2012 for development is that development IDE is much faster.