diff --git a/binding.gyp b/binding.gyp
index 5f63978b07ab50aaf7523219a2170ec737a6b5db..b3309a07ef99dea7967d7bdd04b9fc3500acacae 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -5,9 +5,6 @@
     ],
     'conditions': [
       ['OS=="win"', {
-        'msvs_configuration_attributes': {
-          'SpectreMitigation': 'Spectre'
-        },
         'msvs_settings': {
             'VCCLCompilerTool': {
               'AdditionalOptions': [
diff --git a/deps/winpty/src/winpty.gyp b/deps/winpty/src/winpty.gyp
index 1ac5758bedd8cf54f32280dea4e4aeb5afdee30d..e619813759c6f14694838bdfbd0ea5f8360130ef 100644
--- a/deps/winpty/src/winpty.gyp
+++ b/deps/winpty/src/winpty.gyp
@@ -10,7 +10,7 @@
     #    make -j4 CXX=i686-w64-mingw32-g++ LDFLAGS="-static -static-libgcc -static-libstdc++"

     'variables': {
-        'WINPTY_COMMIT_HASH%': '<!(cmd /c "cd shared && GetCommitHash.bat")',
+        'WINPTY_COMMIT_HASH%': '<!(cmd /c "cd shared && .\\GetCommitHash.bat")',
     },
     'target_defaults' : {
         'defines' : [
@@ -22,7 +22,7 @@
         'include_dirs': [
             # Add the 'src/gen' directory to the include path and force gyp to
             # run the script (re)generating the version header.
-            '<!(cmd /c "cd shared && UpdateGenVersion.bat <(WINPTY_COMMIT_HASH)")',
+            '<!(cmd /c "cd shared && .\\UpdateGenVersion.bat <(WINPTY_COMMIT_HASH)")',
         ]
     },
     'targets' : [
@@ -40,9 +40,6 @@
                 '-lshell32',
                 '-luser32',
             ],
-            'msvs_configuration_attributes': {
-                'SpectreMitigation': 'Spectre'
-            },
             'msvs_settings': {
                 # Specify this setting here to override a setting from somewhere
                 # else, such as node's common.gypi.
@@ -142,9 +139,6 @@
                 '-ladvapi32',
                 '-luser32',
             ],
-            'msvs_configuration_attributes': {
-                'SpectreMitigation': 'Spectre'
-            },
             'msvs_settings': {
                 # Specify this setting here to override a setting from somewhere
                 # else, such as node's common.gypi.
diff --git a/lib/unixTerminal.js b/lib/unixTerminal.js
index 1ec12f796a822c78fba9ad7f6448c3987e325c23..cec8b67aef02f8199e5606a0d257088bf1865877 100644
--- a/lib/unixTerminal.js
+++ b/lib/unixTerminal.js
@@ -28,8 +28,12 @@ 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');
+if (!helperPath.includes('app.asar.unpacked')) {
+    helperPath = helperPath.replace('app.asar', 'app.asar.unpacked');
+}
+if (!helperPath.includes('node_modules.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;