diff --git a/Exception/ProcessFailedException.php b/Exception/ProcessFailedException.php
index 499809ee..de8a9e98 100644
--- a/Exception/ProcessFailedException.php
+++ b/Exception/ProcessFailedException.php
@@ -20,15 +20,14 @@
  */
 class ProcessFailedException extends RuntimeException
 {
-    private Process $process;
-
-    public function __construct(Process $process)
-    {
+    public function __construct(
+        private Process $process,
+    ) {
         if ($process->isSuccessful()) {
             throw new InvalidArgumentException('Expected a failed process, but the given process was successful.');
         }
 
-        $error = sprintf('The command "%s" failed.'."\n\nExit Code: %s(%s)\n\nWorking directory: %s",
+        $error = \sprintf('The command "%s" failed.'."\n\nExit Code: %s(%s)\n\nWorking directory: %s",
             $process->getCommandLine(),
             $process->getExitCode(),
             $process->getExitCodeText(),
@@ -36,7 +35,7 @@ public function __construct(Process $process)
         );
 
         if (!$process->isOutputDisabled()) {
-            $error .= sprintf("\n\nOutput:\n================\n%s\n\nError Output:\n================\n%s",
+            $error .= \sprintf("\n\nOutput:\n================\n%s\n\nError Output:\n================\n%s",
                 $process->getOutput(),
                 $process->getErrorOutput()
             );
diff --git a/Exception/ProcessSignaledException.php b/Exception/ProcessSignaledException.php
index 0fed8ac3..3fd13e5d 100644
--- a/Exception/ProcessSignaledException.php
+++ b/Exception/ProcessSignaledException.php
@@ -20,13 +20,10 @@
  */
 final class ProcessSignaledException extends RuntimeException
 {
-    private Process $process;
-
-    public function __construct(Process $process)
-    {
-        $this->process = $process;
-
-        parent::__construct(sprintf('The process has been signaled with signal "%s".', $process->getTermSignal()));
+    public function __construct(
+        private Process $process,
+    ) {
+        parent::__construct(\sprintf('The process has been signaled with signal "%s".', $process->getTermSignal()));
     }
 
     public function getProcess(): Process
diff --git a/Exception/ProcessStartFailedException.php b/Exception/ProcessStartFailedException.php
index 9bd5a036..37254725 100644
--- a/Exception/ProcessStartFailedException.php
+++ b/Exception/ProcessStartFailedException.php
@@ -18,15 +18,15 @@
  */
 class ProcessStartFailedException extends ProcessFailedException
 {
-    private Process $process;
-
-    public function __construct(Process $process, ?string $message)
-    {
+    public function __construct(
+        private Process $process,
+        ?string $message,
+    ) {
         if ($process->isStarted()) {
             throw new InvalidArgumentException('Expected a process that failed during startup, but the given process was started successfully.');
         }
 
-        $error = sprintf('The command "%s" failed.'."\n\nWorking directory: %s\n\nError: %s",
+        $error = \sprintf('The command "%s" failed.'."\n\nWorking directory: %s\n\nError: %s",
             $process->getCommandLine(),
             $process->getWorkingDirectory(),
             $message ?? 'unknown'
@@ -34,8 +34,6 @@ public function __construct(Process $process, ?string $message)
 
         // Skip parent constructor
         RuntimeException::__construct($error);
-
-        $this->process = $process;
     }
 
     public function getProcess(): Process
diff --git a/Exception/ProcessTimedOutException.php b/Exception/ProcessTimedOutException.php
index 252e1112..d3fe4934 100644
--- a/Exception/ProcessTimedOutException.php
+++ b/Exception/ProcessTimedOutException.php
@@ -23,15 +23,11 @@ class ProcessTimedOutException extends RuntimeException
     public const TYPE_GENERAL = 1;
     public const TYPE_IDLE = 2;
 
-    private Process $process;
-    private int $timeoutType;
-
-    public function __construct(Process $process, int $timeoutType)
-    {
-        $this->process = $process;
-        $this->timeoutType = $timeoutType;
-
-        parent::__construct(sprintf(
+    public function __construct(
+        private Process $process,
+        private int $timeoutType,
+    ) {
+        parent::__construct(\sprintf(
             'The process "%s" exceeded the timeout of %s seconds.',
             $process->getCommandLine(),
             $this->getExceededTimeout()
@@ -58,7 +54,7 @@ public function getExceededTimeout(): ?float
         return match ($this->timeoutType) {
             self::TYPE_GENERAL => $this->process->getTimeout(),
             self::TYPE_IDLE => $this->process->getIdleTimeout(),
-            default => throw new \LogicException(sprintf('Unknown timeout type "%d".', $this->timeoutType)),
+            default => throw new \LogicException(\sprintf('Unknown timeout type "%d".', $this->timeoutType)),
         };
     }
 }
diff --git a/ExecutableFinder.php b/ExecutableFinder.php
index ceb7a558..dca238de 100644
--- a/ExecutableFinder.php
+++ b/ExecutableFinder.php
@@ -19,7 +19,15 @@
  */
 class ExecutableFinder
 {
-    private array $suffixes = ['.exe', '.bat', '.cmd', '.com'];
+    private array $suffixes = [];
+
+    public function __construct()
+    {
+        // Set common extensions on Windows.
+        if ('\\' === \DIRECTORY_SEPARATOR) {
+            $this->suffixes = ['.exe', '.bat', '.cmd', '.com'];
+        }
+    }
 
     /**
      * Replaces default suffixes of executable.
@@ -30,7 +38,10 @@ public function setSuffixes(array $suffixes): void
     }
 
     /**
-     * Adds new possible suffix to check for executable.
+     * Adds new possible suffix to check for executable, including the dot (.).
+     *
+     *     $finder = new ExecutableFinder();
+     *     $finder->addSuffix('.foo');
      */
     public function addSuffix(string $suffix): void
     {
@@ -52,10 +63,10 @@ public function find(string $name, ?string $default = null, array $extraDirs = [
         );
 
         $suffixes = [''];
-        if ('\\' === \DIRECTORY_SEPARATOR) {
-            $pathExt = getenv('PATHEXT');
-            $suffixes = array_merge($pathExt ? explode(\PATH_SEPARATOR, $pathExt) : $this->suffixes, $suffixes);
+        if ('\\' === \DIRECTORY_SEPARATOR && $pathExt = getenv('PATHEXT')) {
+            $suffixes = array_merge(explode(\PATH_SEPARATOR, $pathExt), $suffixes);
         }
+        $suffixes = array_merge($suffixes, $this->suffixes);
         foreach ($suffixes as $suffix) {
             foreach ($dirs as $dir) {
                 if (@is_file($file = $dir.\DIRECTORY_SEPARATOR.$name.$suffix) && ('\\' === \DIRECTORY_SEPARATOR || @is_executable($file))) {
@@ -68,8 +79,14 @@ public function find(string $name, ?string $default = null, array $extraDirs = [
             }
         }
 
+        if (!\function_exists('exec')) {
+            return $default;
+        }
+
         $command = '\\' === \DIRECTORY_SEPARATOR ? 'where' : 'command -v --';
-        if (\function_exists('exec') && ($executablePath = strtok(@exec($command.' '.escapeshellarg($name)), \PHP_EOL)) && @is_executable($executablePath)) {
+        $execResult = @exec($command.' '.escapeshellarg($name));
+
+        if (($executablePath = substr($execResult, 0, strpos($execResult, \PHP_EOL) ?: null)) && @is_executable($executablePath)) {
             return $executablePath;
         }
 
diff --git a/InputStream.php b/InputStream.php
index cd91029e..586e7429 100644
--- a/InputStream.php
+++ b/InputStream.php
@@ -46,7 +46,7 @@ public function write(mixed $input): void
             return;
         }
         if ($this->isClosed()) {
-            throw new RuntimeException(sprintf('"%s" is closed.', static::class));
+            throw new RuntimeException(\sprintf('"%s" is closed.', static::class));
         }
         $this->input[] = ProcessUtils::validateInput(__METHOD__, $input);
     }
diff --git a/PhpExecutableFinder.php b/PhpExecutableFinder.php
index 4a882e0f..b740231a 100644
--- a/PhpExecutableFinder.php
+++ b/PhpExecutableFinder.php
@@ -33,8 +33,13 @@ public function find(bool $includeArgs = true): string|false
     {
         if ($php = getenv('PHP_BINARY')) {
             if (!is_executable($php)) {
+                if (!\function_exists('exec')) {
+                    return false;
+                }
+
                 $command = '\\' === \DIRECTORY_SEPARATOR ? 'where' : 'command -v --';
-                if (\function_exists('exec') && $php = strtok(exec($command.' '.escapeshellarg($php)), \PHP_EOL)) {
+                $execResult = exec($command.' '.escapeshellarg($php));
+                if ($php = substr($execResult, 0, strpos($execResult, \PHP_EOL) ?: null)) {
                     if (!is_executable($php)) {
                         return false;
                     }
@@ -81,6 +86,10 @@ public function find(bool $includeArgs = true): string|false
             $dirs[] = 'C:\xampp\php\\';
         }
 
+        if ($herdPath = getenv('HERD_HOME')) {
+            $dirs[] = $herdPath.\DIRECTORY_SEPARATOR.'bin';
+        }
+
         return $this->executableFinder->find('php', false, $dirs);
     }
 
diff --git a/PhpProcess.php b/PhpProcess.php
index 01d88954..0e7ff846 100644
--- a/PhpProcess.php
+++ b/PhpProcess.php
@@ -52,7 +52,7 @@ public function __construct(string $script, ?string $cwd = null, ?array $env = n
 
     public static function fromShellCommandline(string $command, ?string $cwd = null, ?array $env = null, mixed $input = null, ?float $timeout = 60): static
     {
-        throw new LogicException(sprintf('The "%s()" method cannot be called when using "%s".', __METHOD__, self::class));
+        throw new LogicException(\sprintf('The "%s()" method cannot be called when using "%s".', __METHOD__, self::class));
     }
 
     public function start(?callable $callback = null, array $env = []): void
diff --git a/PhpSubprocess.php b/PhpSubprocess.php
index 04fd8ea8..bdd4173c 100644
--- a/PhpSubprocess.php
+++ b/PhpSubprocess.php
@@ -75,7 +75,7 @@ public function __construct(array $command, ?string $cwd = null, ?array $env = n
 
     public static function fromShellCommandline(string $command, ?string $cwd = null, ?array $env = null, mixed $input = null, ?float $timeout = 60): static
     {
-        throw new LogicException(sprintf('The "%s()" method cannot be called when using "%s".', __METHOD__, self::class));
+        throw new LogicException(\sprintf('The "%s()" method cannot be called when using "%s".', __METHOD__, self::class));
     }
 
     public function start(?callable $callback = null, array $env = []): void
diff --git a/Pipes/AbstractPipes.php b/Pipes/AbstractPipes.php
index cbbb7277..51a566f3 100644
--- a/Pipes/AbstractPipes.php
+++ b/Pipes/AbstractPipes.php
@@ -101,7 +101,7 @@ protected function write(): ?array
             } elseif (!isset($this->inputBuffer[0])) {
                 if (!\is_string($input)) {
                     if (!\is_scalar($input)) {
-                        throw new InvalidArgumentException(sprintf('"%s" yielded a value of type "%s", but only scalars and stream resources are supported.', get_debug_type($this->input), get_debug_type($input)));
+                        throw new InvalidArgumentException(\sprintf('"%s" yielded a value of type "%s", but only scalars and stream resources are supported.', get_debug_type($this->input), get_debug_type($input)));
                     }
                     $input = (string) $input;
                 }
diff --git a/Pipes/UnixPipes.php b/Pipes/UnixPipes.php
index 7bd0db0e..8e95afaa 100644
--- a/Pipes/UnixPipes.php
+++ b/Pipes/UnixPipes.php
@@ -22,16 +22,12 @@
  */
 class UnixPipes extends AbstractPipes
 {
-    private ?bool $ttyMode;
-    private bool $ptyMode;
-    private bool $haveReadSupport;
-
-    public function __construct(?bool $ttyMode, bool $ptyMode, mixed $input, bool $haveReadSupport)
-    {
-        $this->ttyMode = $ttyMode;
-        $this->ptyMode = $ptyMode;
-        $this->haveReadSupport = $haveReadSupport;
-
+    public function __construct(
+        private ?bool $ttyMode,
+        private bool $ptyMode,
+        mixed $input,
+        private bool $haveReadSupport,
+    ) {
         parent::__construct($input);
     }
 
diff --git a/Pipes/WindowsPipes.php b/Pipes/WindowsPipes.php
index 8033442a..116b8e30 100644
--- a/Pipes/WindowsPipes.php
+++ b/Pipes/WindowsPipes.php
@@ -33,12 +33,11 @@ class WindowsPipes extends AbstractPipes
         Process::STDOUT => 0,
         Process::STDERR => 0,
     ];
-    private bool $haveReadSupport;
-
-    public function __construct(mixed $input, bool $haveReadSupport)
-    {
-        $this->haveReadSupport = $haveReadSupport;
 
+    public function __construct(
+        mixed $input,
+        private bool $haveReadSupport,
+    ) {
         if ($this->haveReadSupport) {
             // Fix for PHP bug #51800: reading from STDOUT pipe hangs forever on Windows if the output is too big.
             // Workaround for this problem is to use temporary files instead of pipes on Windows platform.
@@ -53,7 +52,7 @@ public function __construct(mixed $input, bool $haveReadSupport)
             set_error_handler(function ($type, $msg) use (&$lastError) { $lastError = $msg; });
             for ($i = 0;; ++$i) {
                 foreach ($pipes as $pipe => $name) {
-                    $file = sprintf('%s\\sf_proc_%02X.%s', $tmpDir, $i, $name);
+                    $file = \sprintf('%s\\sf_proc_%02X.%s', $tmpDir, $i, $name);
 
                     if (!$h = fopen($file.'.lock', 'w')) {
                         if (file_exists($file.'.lock')) {
diff --git a/Process.php b/Process.php
index baa7d955..78b0fd35 100644
--- a/Process.php
+++ b/Process.php
@@ -338,7 +338,7 @@ public function start(?callable $callback = null, array $env = []): void
         }
 
         if (!is_dir($this->cwd)) {
-            throw new RuntimeException(sprintf('The provided cwd "%s" does not exist.', $this->cwd));
+            throw new RuntimeException(\sprintf('The provided cwd "%s" does not exist.', $this->cwd));
         }
 
         $lastError = null;
@@ -1220,7 +1220,7 @@ public function setOptions(array $options): void
         foreach ($options as $key => $value) {
             if (!\in_array($key, $existingOptions)) {
                 $this->options = $defaultOptions;
-                throw new LogicException(sprintf('Invalid option "%s" passed to "%s()". Supported options are "%s".', $key, __METHOD__, implode('", "', $existingOptions)));
+                throw new LogicException(\sprintf('Invalid option "%s" passed to "%s()". Supported options are "%s".', $key, __METHOD__, implode('", "', $existingOptions)));
             }
             $this->options[$key] = $value;
         }
@@ -1504,10 +1504,10 @@ private function doSignal(int $signal, bool $throwException): bool
         }
 
         if ('\\' === \DIRECTORY_SEPARATOR) {
-            exec(sprintf('taskkill /F /T /PID %d 2>&1', $pid), $output, $exitCode);
+            exec(\sprintf('taskkill /F /T /PID %d 2>&1', $pid), $output, $exitCode);
             if ($exitCode && $this->isRunning()) {
                 if ($throwException) {
-                    throw new RuntimeException(sprintf('Unable to kill the process (%s).', implode(' ', $output)));
+                    throw new RuntimeException(\sprintf('Unable to kill the process (%s).', implode(' ', $output)));
                 }
 
                 return false;
@@ -1517,12 +1517,12 @@ private function doSignal(int $signal, bool $throwException): bool
                 $ok = @proc_terminate($this->process, $signal);
             } elseif (\function_exists('posix_kill')) {
                 $ok = @posix_kill($pid, $signal);
-            } elseif ($ok = proc_open(sprintf('kill -%d %d', $signal, $pid), [2 => ['pipe', 'w']], $pipes)) {
+            } elseif ($ok = proc_open(\sprintf('kill -%d %d', $signal, $pid), [2 => ['pipe', 'w']], $pipes)) {
                 $ok = false === fgets($pipes[2]);
             }
             if (!$ok) {
                 if ($throwException) {
-                    throw new RuntimeException(sprintf('Error while sending signal "%s".', $signal));
+                    throw new RuntimeException(\sprintf('Error while sending signal "%s".', $signal));
                 }
 
                 return false;
@@ -1549,7 +1549,7 @@ private function buildShellCommandline(string|array $commandline): string
     private function prepareWindowsCommandLine(string|array $cmd, array &$env): string
     {
         $cmd = $this->buildShellCommandline($cmd);
-        $uid = uniqid('', true);
+        $uid = bin2hex(random_bytes(4));
         $cmd = preg_replace_callback(
             '/"(?:(
                 [^"%!^]*+
@@ -1601,7 +1601,7 @@ function ($m) use (&$env, $uid) {
     private function requireProcessIsStarted(string $functionName): void
     {
         if (!$this->isStarted()) {
-            throw new LogicException(sprintf('Process must be started before calling "%s()".', $functionName));
+            throw new LogicException(\sprintf('Process must be started before calling "%s()".', $functionName));
         }
     }
 
@@ -1613,7 +1613,7 @@ private function requireProcessIsStarted(string $functionName): void
     private function requireProcessIsTerminated(string $functionName): void
     {
         if (!$this->isTerminated()) {
-            throw new LogicException(sprintf('Process must be terminated before calling "%s()".', $functionName));
+            throw new LogicException(\sprintf('Process must be terminated before calling "%s()".', $functionName));
         }
     }
 
@@ -1643,7 +1643,7 @@ private function replacePlaceholders(string $commandline, array $env): string
     {
         return preg_replace_callback('/"\$\{:([_a-zA-Z]++[_a-zA-Z0-9]*+)\}"/', function ($matches) use ($commandline, $env) {
             if (!isset($env[$matches[1]]) || false === $env[$matches[1]]) {
-                throw new InvalidArgumentException(sprintf('Command line is missing a value for parameter "%s": ', $matches[1]).$commandline);
+                throw new InvalidArgumentException(\sprintf('Command line is missing a value for parameter "%s": ', $matches[1]).$commandline);
             }
 
             return $this->escapeArgument($env[$matches[1]]);
diff --git a/ProcessUtils.php b/ProcessUtils.php
index 092c5ccf..a2dbde9f 100644
--- a/ProcessUtils.php
+++ b/ProcessUtils.php
@@ -56,7 +56,7 @@ public static function validateInput(string $caller, mixed $input): mixed
                 return new \IteratorIterator($input);
             }
 
-            throw new InvalidArgumentException(sprintf('"%s" only accepts strings, Traversable objects or stream resources.', $caller));
+            throw new InvalidArgumentException(\sprintf('"%s" only accepts strings, Traversable objects or stream resources.', $caller));
         }
 
         return $input;
diff --git a/Tests/ExecutableFinderTest.php b/Tests/ExecutableFinderTest.php
index a1b8d6d5..56cb3d51 100644
--- a/Tests/ExecutableFinderTest.php
+++ b/Tests/ExecutableFinderTest.php
@@ -85,6 +85,31 @@ public function testFindWithExtraDirs()
         $this->assertSamePath(\PHP_BINARY, $result);
     }
 
+    public function testFindWithoutSuffix()
+    {
+        $fixturesDir = __DIR__.\DIRECTORY_SEPARATOR.'Fixtures';
+        $name = 'executable_without_suffix';
+
+        $finder = new ExecutableFinder();
+        $result = $finder->find($name, null, [$fixturesDir]);
+
+        $this->assertSamePath($fixturesDir.\DIRECTORY_SEPARATOR.$name, $result);
+    }
+
+    public function testFindWithAddedSuffixes()
+    {
+        $fixturesDir = __DIR__.\DIRECTORY_SEPARATOR.'Fixtures';
+        $name = 'executable_with_added_suffix';
+        $suffix = '.foo';
+
+        $finder = new ExecutableFinder();
+        $finder->addSuffix($suffix);
+
+        $result = $finder->find($name, null, [$fixturesDir]);
+
+        $this->assertSamePath($fixturesDir.\DIRECTORY_SEPARATOR.$name.$suffix, $result);
+    }
+
     /**
      * @runInSeparateProcess
      */
diff --git a/Tests/Fixtures/executable_with_added_suffix.foo b/Tests/Fixtures/executable_with_added_suffix.foo
new file mode 100755
index 00000000..471a493a
--- /dev/null
+++ b/Tests/Fixtures/executable_with_added_suffix.foo
@@ -0,0 +1 @@
+See \Symfony\Component\Process\Tests\ExecutableFinderTest::testFindWithAddedSuffixes()
diff --git a/Tests/Fixtures/executable_without_suffix b/Tests/Fixtures/executable_without_suffix
new file mode 100755
index 00000000..9bf8b4db
--- /dev/null
+++ b/Tests/Fixtures/executable_without_suffix
@@ -0,0 +1 @@
+See \Symfony\Component\Process\Tests\ExecutableFinderTest::testFindWithoutSuffix()
diff --git a/Tests/ProcessTest.php b/Tests/ProcessTest.php
index a639f058..290100e6 100644
--- a/Tests/ProcessTest.php
+++ b/Tests/ProcessTest.php
@@ -16,7 +16,6 @@
 use Symfony\Component\Process\Exception\LogicException;
 use Symfony\Component\Process\Exception\ProcessFailedException;
 use Symfony\Component\Process\Exception\ProcessSignaledException;
-use Symfony\Component\Process\Exception\ProcessStartFailedException;
 use Symfony\Component\Process\Exception\ProcessTimedOutException;
 use Symfony\Component\Process\Exception\RuntimeException;
 use Symfony\Component\Process\InputStream;
@@ -186,7 +185,7 @@ public function testAllOutputIsActuallyReadOnTermination()
         // another byte which will never be read.
         $expectedOutputSize = PipesInterface::CHUNK_SIZE * 2 + 2;
 
-        $code = sprintf('echo str_repeat(\'*\', %d);', $expectedOutputSize);
+        $code = \sprintf('echo str_repeat(\'*\', %d);', $expectedOutputSize);
         $p = $this->getProcessForCode($code);
 
         $p->start();
@@ -379,7 +378,7 @@ public static function chainedCommandsOutputProvider()
      */
     public function testChainedCommandsOutput($expected, $operator, $input)
     {
-        $process = $this->getProcess(sprintf('echo %s %s echo %s', $input, $operator, $input));
+        $process = $this->getProcess(\sprintf('echo %s %s echo %s', $input, $operator, $input));
         $process->run();
         $this->assertEquals($expected, $process->getOutput());
     }
@@ -987,7 +986,7 @@ public function testMethodsThatNeedARunningProcess($method)
         $process = $this->getProcess('foo');
 
         $this->expectException(LogicException::class);
-        $this->expectExceptionMessage(sprintf('Process must be started before calling "%s()".', $method));
+        $this->expectExceptionMessage(\sprintf('Process must be started before calling "%s()".', $method));
 
         $process->{$method}();
     }
@@ -1487,7 +1486,7 @@ public function testEscapeArgument($arg)
 
     public function testRawCommandLine()
     {
-        $p = Process::fromShellCommandline(sprintf('"%s" -r %s "a" "" "b"', self::$phpBin, escapeshellarg('print_r($argv);')));
+        $p = Process::fromShellCommandline(\sprintf('"%s" -r %s "a" "" "b"', self::$phpBin, escapeshellarg('print_r($argv);')));
         $p->run();
 
         $expected = "Array\n(\n    [0] => -\n    [1] => a\n    [2] => \n    [3] => b\n)\n";