diff --git a/if_re.sln b/if_re.sln
new file mode 100644
index 0000000..48e8147
--- /dev/null
+++ b/if_re.sln
@@ -0,0 +1,32 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.12.35521.163 d17.12
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "if_re", "if_re.vcxproj", "{A80FE9DD-C140-40F6-A3F4-55A2A55BFAD4}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|ARM64 = Debug|ARM64
+		Debug|x64 = Debug|x64
+		Release|ARM64 = Release|ARM64
+		Release|x64 = Release|x64
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{A80FE9DD-C140-40F6-A3F4-55A2A55BFAD4}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{A80FE9DD-C140-40F6-A3F4-55A2A55BFAD4}.Debug|ARM64.Build.0 = Debug|ARM64
+		{A80FE9DD-C140-40F6-A3F4-55A2A55BFAD4}.Debug|ARM64.Deploy.0 = Debug|ARM64
+		{A80FE9DD-C140-40F6-A3F4-55A2A55BFAD4}.Debug|x64.ActiveCfg = Debug|ARM64
+		{A80FE9DD-C140-40F6-A3F4-55A2A55BFAD4}.Debug|x64.Build.0 = Debug|ARM64
+		{A80FE9DD-C140-40F6-A3F4-55A2A55BFAD4}.Debug|x64.Deploy.0 = Debug|ARM64
+		{A80FE9DD-C140-40F6-A3F4-55A2A55BFAD4}.Release|ARM64.ActiveCfg = Release|ARM64
+		{A80FE9DD-C140-40F6-A3F4-55A2A55BFAD4}.Release|ARM64.Build.0 = Release|ARM64
+		{A80FE9DD-C140-40F6-A3F4-55A2A55BFAD4}.Release|ARM64.Deploy.0 = Release|ARM64
+		{A80FE9DD-C140-40F6-A3F4-55A2A55BFAD4}.Release|x64.ActiveCfg = Release|x64
+		{A80FE9DD-C140-40F6-A3F4-55A2A55BFAD4}.Release|x64.Build.0 = Release|x64
+		{A80FE9DD-C140-40F6-A3F4-55A2A55BFAD4}.Release|x64.Deploy.0 = Release|x64
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal