diff --git a/CMakeLists.txt b/CMakeLists.txt
index 93c8dba..af7ea72 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,17 +1,24 @@
 # DOS utilities for mars-nwe.
 #
-# Default mode: install a prebuilt net.exe from this source tree. This keeps the
-# normal mars-nwe build independent from Open Watcom.
+# Default install mode uses a split:
+#   - legacy command names are installed from netold.exe
+#   - new command names that netold.exe does not contain are installed from net.exe
 #
-# Maintainer mode: configure with -DMARS_NWE_BUILD_DOSUTILS=ON to rebuild
-# net.exe with Open Watcom v2 on Linux.
+# Maintainer mode can rebuild the new net.exe with Open Watcom.  The freshly
+# built binary is only installed when MARS_NWE_INSTALL_NEW_DOSUTILS is ON, or
+# for the new-only command names in the default split install.
 
-set(MARS_DOSUTILS_NET_EXE
-    "${CMAKE_CURRENT_SOURCE_DIR}/net.exe"
-    CACHE FILEPATH "Prebuilt DOS net.exe used for installation when MARS_NWE_BUILD_DOSUTILS is OFF"
+set(MARS_DOSUTILS_LEGACY_NET_EXE
+    "${CMAKE_CURRENT_SOURCE_DIR}/netold.exe"
+    CACHE FILEPATH "Legacy/pre-Client32 DOS net.exe used by default for legacy command names"
 )
 
-set(MARS_DOSUTILS_PUBLIC_TOOLS
+set(MARS_DOSUTILS_NEW_NET_EXE
+    "${CMAKE_CURRENT_SOURCE_DIR}/net.exe"
+    CACHE FILEPATH "New/experimental DOS net.exe used for new-only tools or when MARS_NWE_INSTALL_NEW_DOSUTILS is ON"
+)
+
+set(MARS_DOSUTILS_LEGACY_TOOLS
     net
     login
     profile
@@ -23,15 +30,17 @@ set(MARS_DOSUTILS_PUBLIC_TOOLS
     map
     mapdel
     logout
-    slist
-    flag
-    flagdir
     capture
     endcap
 )
 
-# Do not install slist.exe yet: func_slist() is empty and SLIST is disabled in net.c.
-# Do not install tests/debug by default either; they are developer-only helpers.
+# Tools not present in netold.exe.  These are installed from the new binary
+# even in the default split mode.
+set(MARS_DOSUTILS_NEW_ONLY_TOOLS
+    slist
+    flag
+    flagdir
+)
 
 if(MARS_NWE_BUILD_DOSUTILS)
     find_package(OpenWatcom REQUIRED)
@@ -119,37 +128,69 @@ if(MARS_NWE_BUILD_DOSUTILS)
         DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/net.exe"
     )
 
-    set(MARS_DOSUTILS_NET_EXE "${CMAKE_CURRENT_BINARY_DIR}/net.exe")
+    set(MARS_DOSUTILS_BUILT_NET_EXE "${CMAKE_CURRENT_BINARY_DIR}/net.exe")
 else()
-    if(NOT EXISTS "${MARS_DOSUTILS_NET_EXE}")
-        message(FATAL_ERROR
-            "Prebuilt DOS utility missing: ${MARS_DOSUTILS_NET_EXE}. "
-            "Either commit net.exe into dosutils or configure with "
-            "-DMARS_NWE_BUILD_DOSUTILS=ON and Open Watcom installed."
-        )
-    endif()
+    set(MARS_DOSUTILS_BUILT_NET_EXE "")
 endif()
 
-foreach(tool IN LISTS MARS_DOSUTILS_PUBLIC_TOOLS)
-    if(tool STREQUAL "net")
-        install(FILES "${MARS_DOSUTILS_NET_EXE}"
-            DESTINATION "${MARS_NWE_INSTALL_FULL_FILEDIR}/SYS/public")
-    else()
-        install(FILES "${MARS_DOSUTILS_NET_EXE}"
+if(MARS_NWE_BUILD_DOSUTILS)
+    set(MARS_DOSUTILS_SELECTED_NEW_EXE "${MARS_DOSUTILS_BUILT_NET_EXE}")
+else()
+    set(MARS_DOSUTILS_SELECTED_NEW_EXE "${MARS_DOSUTILS_NEW_NET_EXE}")
+endif()
+
+if(MARS_NWE_INSTALL_NEW_DOSUTILS)
+    set(MARS_DOSUTILS_SELECTED_LEGACY_EXE "${MARS_DOSUTILS_SELECTED_NEW_EXE}")
+else()
+    set(MARS_DOSUTILS_SELECTED_LEGACY_EXE "${MARS_DOSUTILS_LEGACY_NET_EXE}")
+endif()
+
+if(MARS_NWE_INSTALL_DOSUTILS)
+    if(NOT EXISTS "${MARS_DOSUTILS_SELECTED_LEGACY_EXE}")
+        message(FATAL_ERROR
+            "Selected legacy/default DOS utility missing: ${MARS_DOSUTILS_SELECTED_LEGACY_EXE}. "
+            "Commit dosutils/netold.exe, enable MARS_NWE_INSTALL_NEW_DOSUTILS, "
+            "or enable MARS_NWE_BUILD_DOSUTILS."
+        )
+    endif()
+
+    if(NOT EXISTS "${MARS_DOSUTILS_SELECTED_NEW_EXE}")
+        message(FATAL_ERROR
+            "Selected new DOS utility missing: ${MARS_DOSUTILS_SELECTED_NEW_EXE}. "
+            "Commit dosutils/net.exe or enable MARS_NWE_BUILD_DOSUTILS."
+        )
+    endif()
+
+    message(STATUS "DOS legacy/default utility binary: ${MARS_DOSUTILS_SELECTED_LEGACY_EXE}")
+    message(STATUS "DOS new-only utility binary: ${MARS_DOSUTILS_SELECTED_NEW_EXE}")
+
+    foreach(tool IN LISTS MARS_DOSUTILS_LEGACY_TOOLS)
+        if(tool STREQUAL "net")
+            install(FILES "${MARS_DOSUTILS_SELECTED_LEGACY_EXE}"
+                DESTINATION "${MARS_NWE_INSTALL_FULL_FILEDIR}/SYS/public"
+                RENAME net.exe)
+        else()
+            install(FILES "${MARS_DOSUTILS_SELECTED_LEGACY_EXE}"
+                DESTINATION "${MARS_NWE_INSTALL_FULL_FILEDIR}/SYS/public"
+                RENAME "${tool}.exe")
+        endif()
+    endforeach()
+
+    foreach(tool IN LISTS MARS_DOSUTILS_NEW_ONLY_TOOLS)
+        install(FILES "${MARS_DOSUTILS_SELECTED_NEW_EXE}"
             DESTINATION "${MARS_NWE_INSTALL_FULL_FILEDIR}/SYS/public"
             RENAME "${tool}.exe")
-    endif()
-endforeach()
+    endforeach()
 
-install(FILES "${MARS_DOSUTILS_NET_EXE}"
-    DESTINATION "${MARS_NWE_INSTALL_FULL_FILEDIR}/SYS/login"
-    RENAME login.exe)
+    install(FILES "${MARS_DOSUTILS_SELECTED_LEGACY_EXE}"
+        DESTINATION "${MARS_NWE_INSTALL_FULL_FILEDIR}/SYS/login"
+        RENAME login.exe)
 
-install(FILES "${MARS_DOSUTILS_NET_EXE}"
-    DESTINATION "${MARS_NWE_INSTALL_FULL_FILEDIR}/SYS/login"
-    RENAME map.exe)
-
-install(FILES "${MARS_DOSUTILS_NET_EXE}"
-    DESTINATION "${MARS_NWE_INSTALL_FULL_FILEDIR}/SYS/login"
-    RENAME slist.exe)
+    install(FILES "${MARS_DOSUTILS_SELECTED_LEGACY_EXE}"
+        DESTINATION "${MARS_NWE_INSTALL_FULL_FILEDIR}/SYS/login"
+        RENAME map.exe)
 
+    install(FILES "${MARS_DOSUTILS_SELECTED_LEGACY_EXE}"
+        DESTINATION "${MARS_NWE_INSTALL_FULL_FILEDIR}/SYS/login"
+        RENAME slist.exe)
+endif()
diff --git a/net.exe b/net.exe
index de14040..e7db07f 100755
Binary files a/net.exe and b/net.exe differ
diff --git a/netold.exe b/netold.exe
new file mode 100755
index 0000000..de14040
Binary files /dev/null and b/netold.exe differ