Make tests work in net48 again

testEnvironments.json

@@ -0,0 +1,17 @@
+{
+  "version": "1",
+  "environments": [
+    // See https://aka.ms/remotetesting for more details
+    // about how to configure remote environments.
+    {
+      "name": "WSL Ubuntu",
+      "type": "wsl",
+      "wslDistribution": "Ubuntu"
+    }
+    //{
+    //  "name": "Docker dotnet/sdk",
+    //  "type": "docker",
+    //  "dockerImage": "mcr.microsoft.com/dotnet/sdk"
+    //}
+  ]
+}

tests/Menees.Remoting.Tests/ProcessManager.cs

@@ -7,6 +7,7 @@
 using System.Diagnostics;
 using System.Linq;
 using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
 using System.Text;
 using System.Threading.Tasks;
 
@@ -33,6 +34,7 @@ public ProcessManager(Type hostProgram)
 			CreateNoWindow = true,
 			WindowStyle = ProcessWindowStyle.Hidden,
 			ErrorDialog = false,
+			UseShellExecute = false,
 		};
 
 		if (string.Equals(Path.GetExtension(hostExeLocation), ".exe", StringComparison.OrdinalIgnoreCase))
@@ -41,7 +43,7 @@ public ProcessManager(Type hostProgram)
 		}
 		else
 		{
-			this.StartInfo.FileName = OperatingSystem.IsWindows()
+			this.StartInfo.FileName = RuntimeInformation.IsOSPlatform(OSPlatform.Windows)
 				? Environment.ExpandEnvironmentVariables(@"%ProgramFiles%\dotnet\dotnet.exe")
 				: "dotnet";
 			this.arguments.Add(hostExeLocation);