diff --git a/lib/unixTerminal.js b/lib/unixTerminal.js
index 1ec12f796a822c78fba9ad7f6448c3987e325c23..5cd6b7d635f4752be5a6c5ff9cf9edf988cf94c5 100644
--- a/lib/unixTerminal.js
+++ b/lib/unixTerminal.js
@@ -26,10 +26,23 @@ var terminal_1 = require("./terminal");
 var utils_1 = require("./utils");
 var native = utils_1.loadNativeModule('pty');
 var pty = native.module;
-var helperPath = native.dir + '/spawn-helper';
-helperPath = path.resolve(__dirname, helperPath);
-helperPath = helperPath.replace('app.asar', 'app.asar.unpacked');
-helperPath = helperPath.replace('node_modules.asar', 'node_modules.asar.unpacked');
+// A current external embedded-runtime consumer supplies a non-sibling helper.
+var helperPath = process.env.DSH_NODE_PTY_SPAWN_HELPER;
+if (helperPath) {
+    helperPath = path.resolve(helperPath);
+}
+else {
+    var executableSibling = process.execPath + '-spawn-helper';
+    if (fs.existsSync(executableSibling)) {
+        helperPath = executableSibling;
+    }
+    else {
+        helperPath = native.dir + '/spawn-helper';
+        helperPath = path.resolve(__dirname, helperPath);
+        helperPath = helperPath.replace('app.asar', 'app.asar.unpacked');
+        helperPath = helperPath.replace('node_modules.asar', 'node_modules.asar.unpacked');
+    }
+}
 var DEFAULT_FILE = 'sh';
 var DEFAULT_NAME = 'xterm';
 var DESTROY_SOCKET_TIMEOUT_MS = 200;
diff --git a/src/unixTerminal.ts b/src/unixTerminal.ts
index 98733dc0cd752b554bd94e45904ca341ad141bba..fa234291206617ae5a6d8605abf9771220392d17 100644
--- a/src/unixTerminal.ts
+++ b/src/unixTerminal.ts
@@ -14,10 +14,21 @@ import { assign, loadNativeModule } from './utils';

 const native = loadNativeModule('pty');
 const pty: IUnixNative = native.module;
-let helperPath = native.dir + '/spawn-helper';
-helperPath = path.resolve(__dirname, helperPath);
-helperPath = helperPath.replace('app.asar', 'app.asar.unpacked');
-helperPath = helperPath.replace('node_modules.asar', 'node_modules.asar.unpacked');
+// A current external embedded-runtime consumer supplies a non-sibling helper.
+let helperPath = process.env.DSH_NODE_PTY_SPAWN_HELPER;
+if (helperPath) {
+  helperPath = path.resolve(helperPath);
+} else {
+  const executableSibling = process.execPath + '-spawn-helper';
+  if (fs.existsSync(executableSibling)) {
+    helperPath = executableSibling;
+  } else {
+    helperPath = native.dir + '/spawn-helper';
+    helperPath = path.resolve(__dirname, helperPath);
+    helperPath = helperPath.replace('app.asar', 'app.asar.unpacked');
+    helperPath = helperPath.replace('node_modules.asar', 'node_modules.asar.unpacked');
+  }
+}

 const DEFAULT_FILE = 'sh';
 const DEFAULT_NAME = 'xterm';