From 8b9eeb68f77c71a68ca348d574a5d068f5429d2f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=BE=9E=E5=BA=90?=
 <109708109+CiiLu@users.noreply.github.com>
Date: Sat, 7 Mar 2026 20:51:09 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A3=20BAT=20=E8=84=9A=E6=9C=AC?=
 =?UTF-8?q?=E9=99=90=E5=88=B6=E4=B8=BA=2032767=20(#5697)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Close #4044
---
 .../java/org/jackhuang/hmcl/launch/DefaultLauncher.java     | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/launch/DefaultLauncher.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/launch/DefaultLauncher.java
index c155147259..565ddb5db9 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/launch/DefaultLauncher.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/launch/DefaultLauncher.java
@@ -650,8 +650,10 @@ public class DefaultLauncher extends Launcher {
         final String command = usePowerShell ? null : commandLine.commandLine.toString();
         Map<String, String> envVars = getEnvVars();
 
-        if (!usePowerShell && isWindows) {
-            if (command.length() > 8192) { // maximum length of the command in cmd
+        if (isWindows && !usePowerShell) {
+            // https://stackoverflow.com/a/28452546
+            // https://learn.microsoft.com/troubleshoot/windows-client/shell-experience/command-line-string-limitation
+            if (command.length() > 32767) {
                 throw new CommandTooLongException();
             }
         }