diff --git a/msvc/_msvc_solution.py b/msvc/_msvc_solution.py
index 1d65da67..acf7fd30 100644
--- a/msvc/_msvc_solution.py
+++ b/msvc/_msvc_solution.py
@@ -93,10 +93,10 @@ class msvc_solution(object):
         m = re_acfg.search(ln)
         if m:
           g = m.group(1)
+          if not g in self.g2acfg.keys():
+            self.g2acfg[g] = [0, 1, 2, 3]
           ix = 2 * (m.group(2) == 'Release') + (m.group(3) == 'x64')
           ac = 2 * (m.group(4) == 'Release') + (m.group(5) == 'x64')
-          if not g in self.g2acfg.keys():
-            self.g2acfg[g] = [0] * 4
           self.g2acfg[g][ix] = ac
 
     for g in self.g2proj:
diff --git a/msvc/vs19/mpir.sln b/msvc/vs19/mpir.sln
index 2740fe03..fe9e20b2 100644
--- a/msvc/vs19/mpir.sln
+++ b/msvc/vs19/mpir.sln
@@ -1,6 +1,7 @@
+
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 16
-VisualStudioVersion = 16.0.28705.295
+# Visual Studio 19
+VisualStudioVersion = 19.20.27027.1
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "lib_mpir_cxx", "lib_mpir_cxx\lib_mpir_cxx.vcxproj", "{B265237A-08C6-4BC3-A582-2B480F27C987}"
 EndProject
@@ -32,7 +33,4 @@ Global
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
-	GlobalSection(ExtensibilityGlobals) = postSolution
-		SolutionGuid = {E3E498CC-6B6A-4DBC-BECA-9D4E5F9A8ED7}
-	EndGlobalSection
 EndGlobal