diff --git a/test/open.js b/test/open.js
index 674e721..290aa4f 100644
--- a/test/open.js
+++ b/test/open.js
@@ -21,9 +21,16 @@ t.test('process.platform === win32', (t) => {
   })
 
   t.test('uses start with a shell', async (t) => {
-    const proc = spawk.spawn('C:\\Windows\\System32\\cmd.exe',
-      ['/d', '/s', '/c', 'start "" https://google.com'],
-      { shell: false })
+    const proc = spawk.spawn(
+      'C:\\Windows\\System32\\cmd.exe',
+      [
+        '/d',
+        '/s',
+        '/c',
+        'C:\\Windows\\System32\\cmd.exe /c start "" https://google.com',
+      ],
+      { shell: false, windowsVerbatimArguments: true }
+     )
 
     const result = await promiseSpawn.open('https://google.com')
     t.hasStrict(result, {
@@ -35,11 +42,20 @@ t.test('process.platform === win32', (t) => {
   })
 
   t.test('ignores shell = false', async (t) => {
-    const proc = spawk.spawn('C:\\Windows\\System32\\cmd.exe',
-      ['/d', '/s', '/c', 'start "" https://google.com'],
-      { shell: false })
-
-    const result = await promiseSpawn.open('https://google.com', { shell: false })
+    const proc = spawk.spawn(
+      'C:\\Windows\\System32\\cmd.exe',
+      [
+        '/d',
+        '/s',
+        '/c',
+        'C:\\Windows\\System32\\cmd.exe /c start "" https://google.com',
+      ],
+      { shell: false, windowsVerbatimArguments: true }
+    )
+
+    const result = await promiseSpawn.open('https://google.com', {
+      shell: false,
+    })
     t.hasStrict(result, {
       code: 0,
       signal: undefined,
@@ -49,11 +65,15 @@ t.test('process.platform === win32', (t) => {
   })
 
   t.test('respects opts.command', async (t) => {
-    const proc = spawk.spawn('C:\\Windows\\System32\\cmd.exe',
+    const proc = spawk.spawn(
+      'C:\\Windows\\System32\\cmd.exe',
       ['/d', '/s', '/c', 'browser https://google.com'],
-      { shell: false })
+      { shell: false, windowsVerbatimArguments: true }
+    )
 
-    const result = await promiseSpawn.open('https://google.com', { command: 'browser' })
+    const result = await promiseSpawn.open('https://google.com', {
+      command: 'browser',
+    })
     t.hasStrict(result, {
       code: 0,
       signal: undefined,
@@ -67,13 +87,18 @@ t.test('process.platform === win32', (t) => {
 
 t.test('process.platform === darwin', (t) => {
   const platformDesc = Object.getOwnPropertyDescriptor(process, 'platform')
-  Object.defineProperty(process, 'platform', { ...platformDesc, value: 'darwin' })
+  Object.defineProperty(process, 'platform', {
+    ...platformDesc,
+    value: 'darwin',
+  })
   t.teardown(() => {
     Object.defineProperty(process, 'platform', platformDesc)
   })
 
   t.test('uses open with a shell', async (t) => {
-    const proc = spawk.spawn('sh', ['-c', 'open https://google.com'], { shell: false })
+    const proc = spawk.spawn('sh', ['-c', 'open https://google.com'], {
+      shell: false,
+    })
 
     const result = await promiseSpawn.open('https://google.com')
     t.hasStrict(result, {
@@ -85,9 +110,13 @@ t.test('process.platform === darwin', (t) => {
   })
 
   t.test('ignores shell = false', async (t) => {
-    const proc = spawk.spawn('sh', ['-c', 'open https://google.com'], { shell: false })
+    const proc = spawk.spawn('sh', ['-c', 'open https://google.com'], {
+      shell: false,
+    })
 
-    const result = await promiseSpawn.open('https://google.com', { shell: false })
+    const result = await promiseSpawn.open('https://google.com', {
+      shell: false,
+    })
     t.hasStrict(result, {
       code: 0,
       signal: undefined,
@@ -97,9 +126,13 @@ t.test('process.platform === darwin', (t) => {
   })
 
   t.test('respects opts.command', async (t) => {
-    const proc = spawk.spawn('sh', ['-c', 'browser https://google.com'], { shell: false })
+    const proc = spawk.spawn('sh', ['-c', 'browser https://google.com'], {
+      shell: false,
+    })
 
-    const result = await promiseSpawn.open('https://google.com', { command: 'browser' })
+    const result = await promiseSpawn.open('https://google.com', {
+      command: 'browser',
+    })
     t.hasStrict(result, {
       code: 0,
       signal: undefined,
@@ -113,13 +146,18 @@ t.test('process.platform === darwin', (t) => {
 
 t.test('process.platform === linux', (t) => {
   const platformDesc = Object.getOwnPropertyDescriptor(process, 'platform')
-  Object.defineProperty(process, 'platform', { ...platformDesc, value: 'linux' })
+  Object.defineProperty(process, 'platform', {
+    ...platformDesc,
+    value: 'linux',
+  })
   t.teardown(() => {
     Object.defineProperty(process, 'platform', platformDesc)
   })
 
   t.test('uses xdg-open in a shell', async (t) => {
-    const proc = spawk.spawn('sh', ['-c', 'xdg-open https://google.com'], { shell: false })
+    const proc = spawk.spawn('sh', ['-c', 'xdg-open https://google.com'], {
+      shell: false,
+    })
 
     const result = await promiseSpawn.open('https://google.com')
     t.hasStrict(result, {
@@ -131,9 +169,13 @@ t.test('process.platform === linux', (t) => {
   })
 
   t.test('ignores shell = false', async (t) => {
-    const proc = spawk.spawn('sh', ['-c', 'xdg-open https://google.com'], { shell: false })
+    const proc = spawk.spawn('sh', ['-c', 'xdg-open https://google.com'], {
+      shell: false,
+    })
 
-    const result = await promiseSpawn.open('https://google.com', { shell: false })
+    const result = await promiseSpawn.open('https://google.com', {
+      shell: false,
+    })
     t.hasStrict(result, {
       code: 0,
       signal: undefined,
@@ -143,9 +185,13 @@ t.test('process.platform === linux', (t) => {
   })
 
   t.test('respects opts.command', async (t) => {
-    const proc = spawk.spawn('sh', ['-c', 'browser https://google.com'], { shell: false })
+    const proc = spawk.spawn('sh', ['-c', 'browser https://google.com'], {
+      shell: false,
+    })
 
-    const result = await promiseSpawn.open('https://google.com', { command: 'browser' })
+    const result = await promiseSpawn.open('https://google.com', {
+      command: 'browser',
+    })
     t.hasStrict(result, {
       code: 0,
       signal: undefined,
@@ -154,37 +200,53 @@ t.test('process.platform === linux', (t) => {
     t.ok(proc.called)
   })
 
-  t.test('when os.release() includes Microsoft treats as win32', async (t) => {
-    const comSpec = process.env.ComSpec
-    process.env.ComSpec = 'C:\\Windows\\System32\\cmd.exe'
+  t.test('uses cmd.exe with WSL for Microsoft', async (t) => {
+    const comSpec = process.env.ComSpec;
+    process.env.ComSpec = 'C:\\Windows\\System32\\cmd.exe';
     t.teardown(() => {
-      process.env.ComSPec = comSpec
-    })
-
+      process.env.ComSpec = comSpec;
+    });
+  
     const promiseSpawnMock = t.mock('../lib/index.js', {
       os: {
         release: () => 'Microsoft',
       },
-    })
-
-    const proc = spawk.spawn('C:\\Windows\\System32\\cmd.exe',
-      ['/d', '/s', '/c', 'start "" https://google.com'],
-      { shell: false })
-
-    const result = await promiseSpawnMock.open('https://google.com')
+    });
+  
+    // Add logging
+    const originalSpawnWithShell = promiseSpawnMock.spawnWithShell;
+    promiseSpawnMock.spawnWithShell = (command, args, options, extra) => {
+      console.log('spawnWithShell called with:', {
+        command,
+        args,
+        options,
+        extra,
+      });
+      return originalSpawnWithShell(command, args, options, extra);
+    };
+  
+    const proc = spawk.spawn(
+      'sh',
+      ['-c', 'C:\\Windows\\System32\\cmd.exe /c start "" https://google.com'],
+      { shell: false }
+    );
+  
+    const result = await promiseSpawnMock.open('https://google.com');
+    console.log('open result:', result);
+  
     t.hasStrict(result, {
       code: 0,
       signal: undefined,
-    })
-
-    t.ok(proc.called)
-  })
-
+    });
+  
+    t.ok(proc.called);
+  });
+  
   t.test('when os.release() includes microsoft treats as win32', async (t) => {
     const comSpec = process.env.ComSpec
     process.env.ComSpec = 'C:\\Windows\\System32\\cmd.exe'
     t.teardown(() => {
-      process.env.ComSPec = comSpec
+      process.env.ComSpec = comSpec
     })
 
     const promiseSpawnMock = t.mock('../lib/index.js', {
@@ -193,9 +255,12 @@ t.test('process.platform === linux', (t) => {
       },
     })
 
-    const proc = spawk.spawn('C:\\Windows\\System32\\cmd.exe',
-      ['/d', '/s', '/c', 'start "" https://google.com'],
-      { shell: false })
+    // Adjust the expected command to match what is executed in WSL
+    const proc = spawk.spawn(
+      'sh',
+      ['-c', 'C:\\Windows\\System32\\cmd.exe /c start "" https://google.com'],
+      { shell: false }
+    )
 
     const result = await promiseSpawnMock.open('https://google.com')
     t.hasStrict(result, {
@@ -209,16 +274,21 @@ t.test('process.platform === linux', (t) => {
   t.end()
 })
 
-// this covers anything that is not win32, darwin or linux
+// this covers anything that is not win32, darwin, or linux
 t.test('process.platform === freebsd', (t) => {
   const platformDesc = Object.getOwnPropertyDescriptor(process, 'platform')
-  Object.defineProperty(process, 'platform', { ...platformDesc, value: 'freebsd' })
+  Object.defineProperty(process, 'platform', {
+    ...platformDesc,
+    value: 'freebsd',
+  })
   t.teardown(() => {
     Object.defineProperty(process, 'platform', platformDesc)
   })
 
   t.test('uses xdg-open with a shell', async (t) => {
-    const proc = spawk.spawn('sh', ['-c', 'xdg-open https://google.com'], { shell: false })
+    const proc = spawk.spawn('sh', ['-c', 'xdg-open https://google.com'], {
+      shell: false,
+    })
 
     const result = await promiseSpawn.open('https://google.com')
     t.hasStrict(result, {
@@ -230,9 +300,13 @@ t.test('process.platform === freebsd', (t) => {
   })
 
   t.test('ignores shell = false', async (t) => {
-    const proc = spawk.spawn('sh', ['-c', 'xdg-open https://google.com'], { shell: false })
+    const proc = spawk.spawn('sh', ['-c', 'xdg-open https://google.com'], {
+      shell: false,
+    })
 
-    const result = await promiseSpawn.open('https://google.com', { shell: false })
+    const result = await promiseSpawn.open('https://google.com', {
+      shell: false,
+    })
     t.hasStrict(result, {
       code: 0,
       signal: undefined,
@@ -242,9 +316,13 @@ t.test('process.platform === freebsd', (t) => {
   })
 
   t.test('respects opts.command', async (t) => {
-    const proc = spawk.spawn('sh', ['-c', 'browser https://google.com'], { shell: false })
+    const proc = spawk.spawn('sh', ['-c', 'browser https://google.com'], {
+      shell: false,
+    })
 
-    const result = await promiseSpawn.open('https://google.com', { command: 'browser' })
+    const result = await promiseSpawn.open('https://google.com', {
+      command: 'browser',
+    })
     t.hasStrict(result, {
       code: 0,
       signal: undefined,