IE 11 identifies itself as IE 7?

We're got an older ASP.NET Web Forms app that users who are using IE 11 are having problems with. I'm trying to figure out what's going on, and so I decided to put in some code in the code behind to check the browser, version numbers and so on. I've got it writing that stuff out to a label on the page. Here's what I've got:
Dim sb As StringBuilder = New StringBuilder With Request.Browser sb.Append(String.Format("Browser type: {0};", .Type)) sb.Append(String.Format("Name: {0};", .Browser)) sb.Append(String.Format("Version: {0};", .Version)) sb.Append(String.Format("Major version: {0};", .MajorVersion)) sb.Append(String.Format("Minor Version: {0};", .MinorVersion)) lblInfo.Text = sb.ToString() End With I've got 2 PCs, one with IE 10 and the other with IE 11 on it. The one with IE 10 is an older, 32-bit Windows 7 machine. It's the one I use to testing this older ASP ...