diff --git a/Help/variable/MSVC10.rst b/Help/variable/MSVC10.rst
index 33692ad20..98e0493d3 100644
--- a/Help/variable/MSVC10.rst
+++ b/Help/variable/MSVC10.rst
@@ -1,6 +1,5 @@
 MSVC10
 ------
 
-``True`` when using Microsoft Visual C++ 10.0
-
-Set to ``true`` when the compiler is version 10.0 of Microsoft Visual C++.
+``True`` when using the Microsoft Visual Studio ``v100`` toolset
+(``cl`` version 16) or another compiler that simulates it.
diff --git a/Help/variable/MSVC11.rst b/Help/variable/MSVC11.rst
index 3ab606d41..42b7b866a 100644
--- a/Help/variable/MSVC11.rst
+++ b/Help/variable/MSVC11.rst
@@ -1,6 +1,5 @@
 MSVC11
 ------
 
-``True`` when using Microsoft Visual C++ 11.0
-
-Set to ``true`` when the compiler is version 11.0 of Microsoft Visual C++.
+``True`` when using the Microsoft Visual Studio ``v110`` toolset
+(``cl`` version 17) or another compiler that simulates it.
diff --git a/Help/variable/MSVC12.rst b/Help/variable/MSVC12.rst
index 15fa64b96..0648f351a 100644
--- a/Help/variable/MSVC12.rst
+++ b/Help/variable/MSVC12.rst
@@ -1,6 +1,5 @@
 MSVC12
 ------
 
-``True`` when using Microsoft Visual C++ 12.0.
-
-Set to ``true`` when the compiler is version 12.0 of Microsoft Visual C++.
+``True`` when using the Microsoft Visual Studio ``v120`` toolset
+(``cl`` version 18) or another compiler that simulates it.
diff --git a/Help/variable/MSVC14.rst b/Help/variable/MSVC14.rst
index 0b9125de6..f67ebc75c 100644
--- a/Help/variable/MSVC14.rst
+++ b/Help/variable/MSVC14.rst
@@ -1,6 +1,5 @@
 MSVC14
 ------
 
-``True`` when using Microsoft Visual C++ 14.0.
-
-Set to ``true`` when the compiler is version 14.0 of Microsoft Visual C++.
+``True`` when using the Microsoft Visual Studio ``v140`` toolset
+(``cl`` version 19) or another compiler that simulates it.
diff --git a/Help/variable/MSVC80.rst b/Help/variable/MSVC80.rst
index b17777c79..0d33e826a 100644
--- a/Help/variable/MSVC80.rst
+++ b/Help/variable/MSVC80.rst
@@ -1,6 +1,5 @@
 MSVC80
 ------
 
-``True`` when using Microsoft Visual C++ 8.0.
-
-Set to ``true`` when the compiler is version 8.0 of Microsoft Visual C++.
+``True`` when using the Microsoft Visual Studio ``v80`` toolset
+(``cl`` version 14) or another compiler that simulates it.
diff --git a/Help/variable/MSVC90.rst b/Help/variable/MSVC90.rst
index 7162d6c4e..1716e6f3f 100644
--- a/Help/variable/MSVC90.rst
+++ b/Help/variable/MSVC90.rst
@@ -1,6 +1,5 @@
 MSVC90
 ------
 
-``True`` when using Microsoft Visual C++ 9.0.
-
-Set to ``true`` when the compiler is version 9.0 of Microsoft Visual C++.
+``True`` when using the Microsoft Visual Studio ``v90`` toolset
+(``cl`` version 15) or another compiler that simulates it.
diff --git a/Source/cmGlobalVisualStudio10Generator.cxx b/Source/cmGlobalVisualStudio10Generator.cxx
index 819feb1e8..ab87d678e 100644
--- a/Source/cmGlobalVisualStudio10Generator.cxx
+++ b/Source/cmGlobalVisualStudio10Generator.cxx
@@ -350,16 +350,22 @@ std::string const& cmGlobalVisualStudio10Generator::GetMSBuildCommand()
 std::string cmGlobalVisualStudio10Generator::FindMSBuildCommand()
 {
   std::string msbuild;
-  std::string mskey =
-    "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\MSBuild\\ToolsVersions\\";
+  std::string mskey;
+
+  // Search in standard location.
+  mskey = "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\MSBuild\\ToolsVersions\\";
   mskey += this->GetToolsVersion();
   mskey += ";MSBuildToolsPath";
   if (cmSystemTools::ReadRegistryValue(mskey.c_str(), msbuild,
                                        cmSystemTools::KeyWOW64_32)) {
     cmSystemTools::ConvertToUnixSlashes(msbuild);
-    msbuild += "/";
+    msbuild += "/MSBuild.exe";
+    if (cmSystemTools::FileExists(msbuild, true)) {
+      return msbuild;
+    }
   }
-  msbuild += "MSBuild.exe";
+
+  msbuild = "MSBuild.exe";
   return msbuild;
 }
 
diff --git a/Source/cmGlobalVisualStudio7Generator.cxx b/Source/cmGlobalVisualStudio7Generator.cxx
index 08be30470..8d3964fbb 100644
--- a/Source/cmGlobalVisualStudio7Generator.cxx
+++ b/Source/cmGlobalVisualStudio7Generator.cxx
@@ -150,13 +150,20 @@ std::string const& cmGlobalVisualStudio7Generator::GetDevEnvCommand()
 std::string cmGlobalVisualStudio7Generator::FindDevEnvCommand()
 {
   std::string vscmd;
-  std::string vskey = this->GetRegistryBase() + ";InstallDir";
+  std::string vskey;
+
+  // Search in standard location.
+  vskey = this->GetRegistryBase() + ";InstallDir";
   if (cmSystemTools::ReadRegistryValue(vskey.c_str(), vscmd,
                                        cmSystemTools::KeyWOW64_32)) {
     cmSystemTools::ConvertToUnixSlashes(vscmd);
-    vscmd += "/";
+    vscmd += "/devenv.com";
+    if (cmSystemTools::FileExists(vscmd, true)) {
+      return vscmd;
+    }
   }
-  vscmd += "devenv.com";
+
+  vscmd = "devenv.com";
   return vscmd;
 }