diff -urN wine-11.16-orig/dlls/ntdll/unix/virtual.c wine-11.16/dlls/ntdll/unix/virtual.c
--- wine-11.16-orig/dlls/ntdll/unix/virtual.c	2026-08-22 05:25:07 +0900
+++ wine-11.16/dlls/ntdll/unix/virtual.c	2026-08-24 01:51:22 +0900
@@ -5090,6 +5090,14 @@
  */
 void virtual_set_large_address_space(void)
 {
+    const char *force_laa_str;
+    int force_laa;
+    int is_laa;
+
+    force_laa_str = getenv("WINEFORCELARGEADDRESSAWARE");
+    force_laa = (force_laa_str != NULL && *force_laa_str != '\0');
+    is_laa = (force_laa || (main_image_info.ImageCharacteristics & IMAGE_FILE_LARGE_ADDRESS_AWARE));
+
     if (is_win64)
     {
         if (!is_wow64())
@@ -5101,7 +5109,7 @@
                 free_reserved_memory( 0, (char *)0x7ffe0000 );
 #endif
         }
-        else if (main_image_info.ImageCharacteristics & IMAGE_FILE_LARGE_ADDRESS_AWARE)
+        else if (is_laa)
         {
             user_space_wow_limit = limit_4g - 1;
             /* reserve space for top-down allocations; some apps break if the entire high 2G is available */
@@ -5111,7 +5119,7 @@
     }
     else
     {
-        if (!(main_image_info.ImageCharacteristics & IMAGE_FILE_LARGE_ADDRESS_AWARE)) return;
+        if (!is_laa) return;
         free_reserved_memory( (char *)0x80000000, address_space_limit );
     }
     user_space_limit = working_set_limit = address_space_limit;