Windows host: prefer .bat and hidden console for OTP 26

docs/packaging.md

@@ -32,17 +32,21 @@ Default when the host runs as a normal Win32 process (installer or portable zip)
 
 ```
 MyApp/
-  DesktopWebView.exe
-  DesktopWebView.ini              # optional, beside the exe
+  MyApp.exe                       # native host (package.name.exe or host_executable)
+  MyApp.ini                       # optional, beside the exe (<exe_basename>.ini)
   beam/
     bin/
       my_app.bat                  # or my_app (escript/release)
     ...
 ```
 
-- Ini discovery: `--edw-config` → `DesktopWebView.ini` beside the executable.
+- Installed host name defaults to `package.name` + `.exe` on Windows host-first
+  (override with `package.host_executable`). The source binary may still be
+  `DesktopWebView.exe` from `desktop_webview` / `DESKTOP_HOST_BINARY`.
+- Ini discovery: `--edw-config` → `<exe_basename>.ini` beside the executable →
+  `DesktopWebView.ini` beside the executable.
 - Relative `beam.path` / `working_dir` resolve against the directory containing
-  `DesktopWebView.exe`.
+  the host executable.
 - Forwarded argv and `EDW_PORT` / `EDW_HOST` are unchanged.
 - Release asset name: `DesktopWebView-windows-x64.exe` (see Binaries).
 - WebView2: document Evergreen Runtime dependency in the app installer; the host
@@ -82,8 +86,9 @@ MyApp/
 ## Config discovery
 
 1. `--edw-config=/path/to.ini`
-2. `DesktopWebView.ini` beside the executable
-3. macOS only: `Contents/Resources/DesktopWebView.ini` (app bundle)
+2. `<exe_basename>.ini` beside the executable (e.g. `dDrive.ini` for `dDrive.exe`)
+3. `DesktopWebView.ini` beside the executable
+4. macOS only: `Contents/Resources/DesktopWebView.ini` (app bundle)
 
 ### Example ini
 

native/windows/CMakeLists.txt

@@ -30,7 +30,7 @@ else()
   set(WEBVIEW2_LIB_DIR "${WEBVIEW2_ROOT}/build/native/x86")
 endif()
 
-add_executable(DesktopWebView
+add_executable(DesktopWebView WIN32
   src/main.cpp
   src/config.cpp
   src/json_util.cpp

native/windows/src/config.cpp

@@ -120,7 +120,21 @@ std::string HostConfig::resources_root() const {
 
 std::optional<std::string> HostConfig::resolve_ini_path() const {
   if (config_path) return *config_path;
-  auto beside = join_path(resources_root(), "DesktopWebView.ini");
+  auto root = resources_root();
+  // Prefer <exe_basename>.ini so renamed hosts (e.g. dDrive.exe → dDrive.ini)
+  // pick up the packaged config; fall back to the conventional name.
+  char buf[MAX_PATH];
+  DWORD n = GetModuleFileNameA(nullptr, buf, MAX_PATH);
+  if (n > 0 && n < MAX_PATH) {
+    std::string exe = buf;
+    auto slash = exe.find_last_of("/\\");
+    std::string base = (slash == std::string::npos) ? exe : exe.substr(slash + 1);
+    auto dot = base.find_last_of('.');
+    if (dot != std::string::npos) base = base.substr(0, dot);
+    auto beside_exe = join_path(root, base + ".ini");
+    if (file_exists(beside_exe)) return beside_exe;
+  }
+  auto beside = join_path(root, "DesktopWebView.ini");
   if (file_exists(beside)) return beside;
   return std::nullopt;
 }

native/windows/src/host_controller.cpp

@@ -317,11 +317,16 @@ void HostController::spawn_beam() {
     return;
   }
   std::string script = join_path(join_path(beam_dir, "bin"), app_name);
-  if (!file_exists(script)) {
-    if (file_exists(script + ".bat"))
-      script += ".bat";
-    else if (file_exists(script + ".cmd"))
-      script += ".cmd";
+  // Mix releases ship both a Unix `bin/<app>` shell script and `bin/<app>.bat`.
+  // Prefer the batch file when present so CreateProcess does not attempt to
+  // execute the extensionless shell script (Windows error 193).
+  if (file_exists(script + ".bat"))
+    script += ".bat";
+  else if (file_exists(script + ".cmd"))
+    script += ".cmd";
+  else if (!file_exists(script)) {
+    fprintf(stderr, "edw: beam script not found: %s\n", script.c_str());
+    return;
   }
   std::string wd =
       config_.beam_working_dir
@@ -367,8 +372,12 @@ void HostController::spawn_beam() {
   }
   env_block.push_back(L'\0');
 
+  // OTP 26's user/logger need a real console (NUL triggers `nouser`; missing
+  // handles crash logger). Give BEAM a hidden private console.
   STARTUPINFOW si{};
   si.cb = sizeof(si);
+  si.dwFlags = STARTF_USESHOWWINDOW;
+  si.wShowWindow = SW_HIDE;
   PROCESS_INFORMATION pi{};
   std::wstring wcmd = utf8_to_wide(cmdline);
   std::wstring wwd = utf8_to_wide(wd);
@@ -381,8 +390,9 @@ void HostController::spawn_beam() {
     beam_process_ = nullptr;
   }
 
-  if (!CreateProcessW(nullptr, mutable_cmd.data(), nullptr, nullptr, FALSE, CREATE_UNICODE_ENVIRONMENT,
-                      env_block.data(), wwd.c_str(), &si, &pi)) {
+  DWORD flags = CREATE_UNICODE_ENVIRONMENT | CREATE_NEW_CONSOLE;
+  if (!CreateProcessW(nullptr, mutable_cmd.data(), nullptr, nullptr, FALSE, flags, env_block.data(),
+                      wwd.c_str(), &si, &pi)) {
     fprintf(stderr, "edw: failed to spawn beam (%lu): %s\n", GetLastError(), cmdline.c_str());
     return;
   }

native/windows/src/main.cpp

@@ -22,7 +22,7 @@ std::vector<std::string> argv_utf8() {
 
 }  // namespace
 
-int main(int, char**) {
+int WINAPI wWinMain(HINSTANCE, HINSTANCE, PWSTR, int) {
   HRESULT hr = CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED);
   if (FAILED(hr)) {
     fprintf(stderr, "edw: CoInitializeEx failed\n");