diff --git a/SliderCaptcha.sln b/SliderCaptcha.sln
new file mode 100644
index 0000000000000000000000000000000000000000..d0a3f8829664b2544e517b0da9a1a69dd6c57757
--- /dev/null
+++ b/SliderCaptcha.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.30717.126
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "slidercaptch", "src\slidercaptch.csproj", "{69EB6B1A-5846-4927-BEC2-75AA7BFD8F4B}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{69EB6B1A-5846-4927-BEC2-75AA7BFD8F4B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{69EB6B1A-5846-4927-BEC2-75AA7BFD8F4B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{69EB6B1A-5846-4927-BEC2-75AA7BFD8F4B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{69EB6B1A-5846-4927-BEC2-75AA7BFD8F4B}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {0C8F0C02-F1A5-4927-B035-6BC8030B8F29}
+	EndGlobalSection
+EndGlobal
diff --git a/src/slidercaptch.csproj b/src/slidercaptch.csproj
new file mode 100644
index 0000000000000000000000000000000000000000..842a7700e49415dc3c1b592b3181c792f6dc811a
--- /dev/null
+++ b/src/slidercaptch.csproj
@@ -0,0 +1,7 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net5.0</TargetFramework>
+  </PropertyGroup>
+
+</Project>