diff --git a/README.md b/README.md
index 810030b..589b42b 100644
--- a/README.md
+++ b/README.md
@@ -15,9 +15,12 @@ Main features:
 
 # Development environment
 
-Visual Studio 2019, any edition.
+The code and project file is known to work with the following combination of software:
 
-WDK, recent version.
+- Visual Studio 2019 (MSVC toolset v14.26)
+- WDK v10.0.18362.1
+
+Specifically, the code can't be compiled using MSVC toolset v14.28 because of limitations in this version.
 
 # Architecture