Prevent ID autogeneration on copy-paste in Visual Studio 2008 ASP.NET Web Form

If you're on Visual Studio 2013, see this stackoverflow question:

Disable "Auto ID elements" in Visual Studio 2013

which basically points to a bug raised with Microsoft (disabling auto id has been removed from VS 2013):

http://connect.microsoft.com/VisualStudio/feedback/details/806446/asp-net-web-forms-development-unable-to-disable-auto-id-generation-on-paste-using-new-version-of-visual-studio-2013

Options, Text Editor, HTML, Misc, Auto ID on Paste

By the way, the most similar article contains just the same question (answered, of course). Be more careful next time :)