Update READMEs and INSTALL for VS versions

Also remove that "MSVC++ 6 projects are available notice" since those
have been removed for quite a while.

Author: JoelTroch

INSTALL.md

@@ -9,7 +9,7 @@ System requirements:
 
 You will need to install the following dependencies before you can install the mods themselves:
 
-1. Install the Visual Studio 2019 re-distributable. You can find it [here](https://docs.microsoft.com/en-US/cpp/windows/latest-supported-vc-redist?view=msvc-170). Make sure to install the x86 version. The re-distributable for 2019 is also used for several other versions, this should be noted on the download page.
+1. Install the "Latest supported v14 (for Visual Studio 2017–2026)" re-distributable. You can find it [here](https://docs.microsoft.com/en-US/cpp/windows/latest-supported-vc-redist?view=msvc-170). Make sure to install the x86 version. The re-distributable for 2019/2022/2026 is also used for several other versions, this should be noted on the download page.
 
 2. Set up dotnet script. You can find out how to do that here: [Setting up and using dotnet script](/docs/tutorials/setting-up-and-using-dotnet-script.md)
 

README.md

@@ -4,7 +4,7 @@
 
 # Purpose
 
-Each repository provides project files compatible with Visual Studio 2019 and 2022, as well as bug fixes. The Opposing Force and Blue Shift projects are reference implementations of their respective games. This means they provide the original features, implemented as they are in the original games, including the many cases of code duplication.
+Each repository provides project files compatible with Visual Studio 2019 and newer, as well as bug fixes. The Opposing Force and Blue Shift projects are reference implementations of their respective games. This means they provide the original features, implemented as they are in the original games, including the many cases of code duplication.
 
 The goal of the Updated repositories is to allow modders to make mods based on these games, while providing bug fixes that could be applied to the official games as well. A mod installation is also provided for each repository to allow players to play these games with all bug fixes applied.
 

projects/readme.txt

@@ -2,13 +2,12 @@ Directory Contents
 ==================
 
 vs2019
-  Contains Visual C++ 2019 project and solution files.
+  Contains Visual C++ 2019 (compatible with newer versions) project and
+  solution files.
   Please read readme.txt included in that folder for further instructions.
 
 
 Other notes
 ===========
 
-MSVC++ 6.0 .dsp files can be found in the appropriate folders.
-
 Linux Makefiles can be found in ../linux/

projects/vs2019/readme.txt

@@ -2,9 +2,9 @@ Directory Contents
 ==================
 
 projects.sln
-  Solution file for Visual C++ 2019, containing the main projects for
-  compiling the valve DLL files.
-  
+  Solution file for Visual C++ 2019 (compatible with newer versions),
+  containing the main projects for compiling the valve DLL files.
+
 utils.sln
   Solution file containing projects for the utilities.
   Special user interaction is required in order to compile a share of the
@@ -13,7 +13,7 @@ utils.sln
   "smdlexp project" bellow.
   The serverctrl project is problematic, see "serverctrl project" bellow.
   Further project specific notes are also provided bellow.
-  
+
 [other required files]