How can I template my .sln file to point a website project to variable IIS instances?

Question

(Copied and pasted from my StackOverflow question.)
I have the following set up in TFS:
$/Arena/Main
↳$/Arena/Dev
↳$/Arena/Prod
.../Dev and .../Prod are
branches of .../Main.
Arena is a website, and my Dev workspace
sits in \inetpub\wwwroot.
Arena is actually a third party product we use that I write modifications/additions to, so it installs to \Program
Files (x86)\Arena ChMS\. That's where my $/Arena/Main workspace
is.
I want to have Arena.sln sit
at $/Arena/[branch]/Arena/Arena.sln.
Since it's a website, I want the sln to reference different local IIS instances. For dev,
it should reference https://dev.foo.com and
for main, https://main.foo.com.
Each of those domains is a line in my HOSTS file. (Prod references https://www.foo.com,
but it's on a different machine.)
The Arena website's section in main's Arena.sln looks
like this:
Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio 2013
VisualStudioVersion = 12.0.31101.0
MinimumVisualStudioVersion = 10.0.40219.1
Project("{E24C65DC-7377-472B-9ABA-BC803B73C61A}") = "https://main.foo.com", "https://main.foo.com", "{3141B9EC-1C9B-466E-B809-ED36EAD2C63B}"
ProjectSection(WebsiteProperties) = preProject
SccProjectName = "SAK"
SccAuxPath = "SAK"
SccLocalPath = "SAK"
SccProvider = "SAK"
UseIISExpress = "false"
TargetFrameworkMoniker = ".NETFramework,Version%3Dv4.5.1"
Debug.AspNetCompiler.VirtualPath = "/main.foo.com"
Debug.AspNetCompiler.PhysicalPath = "..\Arena"
Debug.AspNetCompiler.TargetPath = "PrecompiledWeb\main.foo.com\"
Debug.AspNetCompiler.Updateable = "true"
Debug.AspNetCompiler.ForceOverwrite = "true"
Debug.AspNetCompiler.FixedNames = "false"
Debug.AspNetCompiler.Debug = "True"
Release.AspNetCompiler.VirtualPath = "/main.foo.com"
Release.AspNetCompiler.PhysicalPath = "..\Arena"
Release.AspNetCompiler.TargetPath = "PrecompiledWeb\main.foo.com\"
Release.AspNetCompiler.Updateable = "true"
Release.AspNetCompiler.ForceOverwrite = "true"
Release.AspNetCompiler.FixedNames = "false"
Release.AspNetCompiler.Debug = "False"
SlnRelativePath = "..\Arena"
EndProjectSection
EndProject
How can I make it so that Dev's
Arena.sln references https://dev.foo.com and ..\wwwrootthroughout
the sln?
I can have separate cloaked copies of Arena.sln in the branches/workspaces but then changes in dev's sln (added projects, etc) won't be propagated to main. I would like to have a sln template that's either filled in by TFS automagically, or gets its values
from a separate cloaked file that sits alongside it.
A last resort would be getting its values from environment variables.  That's not ideal because it means that I could not switch solutions via VS's TFS Team Explorer widget (since VS's environment is set when it's opened), unless there's a way to have
a batch file run when Team Explorer switches workspaces.
Any ideas?

Answer 1

Hi Jordan,
I am trying to involve someone to further look at this issue. There might be some time delay. Appreciate your patience and thanks for your understanding.
Best regards,