diff --git a/Scripts/PesterInterface.ps1 b/Scripts/PesterInterface.ps1
index 4bec58d4..5a1acd2b 100644
--- a/Scripts/PesterInterface.ps1
+++ b/Scripts/PesterInterface.ps1
@@ -139,7 +139,12 @@ function New-TestItemId {
 
 		# If this is a root container, just return the file path, since root containers can only be files (for now)
 		if ($Test -is [Pester.Block] -and $Test.IsRoot) {
-			return $Test.BlockContainer.Item.ToString().ToUpper()
+      [string]$path = $Test.BlockContainer.Item
+      if ($IsWindows -or $PSEdition -eq 'Desktop') {
+        return $path.ToUpper()
+      } else {
+        return $path
+      }
 		}
 
 		[String]$TestID = @(
diff --git a/package.json b/package.json
index 12de3725..24778eda 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,9 @@
 					"items": {
 						"type": "string"
 					},
-					"default": ["**/*.[tT]ests.[pP][sS]1"],
+					"default": [
+						"**/*.[tT]ests.[pP][sS]1"
+					],
 					"markdownDescription": "Specify an array of [Glob Patterns](https://code.visualstudio.com/docs/editor/codebasics#_advanced-search-options) of Pester test files for the adapter to scan, relative to your workspace. This is useful if you want to limit what test files or scanned, or you want to use a different test format than `.tests.ps1`. You must specify files, so if you want to include an entire folder, add a wildcard, for instance `Tests\\*.Tests.ps1`. **This is case sensitive!** Here is a case insensitive example: `[tT]ests\\*.[tT]ests.[pP][sS]1`"
 				},
 				"pester.hideSkippedBecauseMessages": {
diff --git a/src/dotnetNamedPipeServer.ts b/src/dotnetNamedPipeServer.ts
index f7dc539a..deb76987 100644
--- a/src/dotnetNamedPipeServer.ts
+++ b/src/dotnetNamedPipeServer.ts
@@ -46,7 +46,7 @@ export class DotnetNamedPipeServer implements Disposable {
 		} else {
 			// Windows uses NamedPipes where non-Windows platforms use Unix Domain Sockets.
 			// This requires connecting to the pipe file in different locations on Windows vs non-Windows.
-			return join(tmpdir(), pipeName)
+			return join(tmpdir(), `CoreFxPipe_${pipeName}`)
 		}
 	}