build: depends makes libmultiprocess by default

diff --git a/ci/test/00_setup_env_i686_multiprocess.sh b/ci/test/00_setup_env_i686_multiprocess.sh
index e19a45d1..c3caefc5 100755
--- a/ci/test/00_setup_env_i686_multiprocess.sh
+++ b/ci/test/00_setup_env_i686_multiprocess.sh
@@ -11,7 +11,7 @@ export CONTAINER_NAME=ci_i686_multiprocess
 export CI_IMAGE_NAME_TAG="mirror.gcr.io/ubuntu:24.04"
 export CI_IMAGE_PLATFORM="linux/amd64"
 export PACKAGES="llvm clang g++-multilib"
-export DEP_OPTS="DEBUG=1 MULTIPROCESS=1"
+export DEP_OPTS="DEBUG=1"
 export GOAL="install"
 export TEST_RUNNER_EXTRA="--v2transport --usecli"
 export BITCOIN_CONFIG="\
diff --git a/cmake/module/Maintenance.cmake b/cmake/module/Maintenance.cmake
index 52fc7fab..5f4b1d8a 100644
--- a/cmake/module/Maintenance.cmake
+++ b/cmake/module/Maintenance.cmake
@@ -23,7 +23,7 @@ function(add_maintenance_targets)
     return()
   endif()
 
-  foreach(target IN ITEMS bitcoin bitcoind bitcoin-qt bitcoin-cli bitcoin-tx bitcoin-util bitcoin-wallet test_bitcoin bench_bitcoin)
+  foreach(target IN ITEMS bitcoin bitcoind bitcoin-node bitcoin-qt bitcoin-gui bitcoin-cli bitcoin-tx bitcoin-util bitcoin-wallet test_bitcoin bench_bitcoin)
     if(TARGET ${target})
       list(APPEND executables $<TARGET_FILE:${target}>)
     endif()
diff --git a/depends/Makefile b/depends/Makefile
index 9767b8eb..ed54eac4 100644
--- a/depends/Makefile
+++ b/depends/Makefile
@@ -39,7 +39,8 @@ NO_QR ?=
 NO_WALLET ?=
 NO_ZMQ ?=
 NO_USDT ?=
-MULTIPROCESS ?=
+# Default NO_IPC value is 1 on Windows
+NO_IPC ?= $(if $(findstring mingw32,$(HOST)),1,)
 LTO ?=
 FALLBACK_DOWNLOAD_PATH ?= https://bitcoincore.org/depends-sources
 
@@ -161,7 +162,7 @@ qt_native_packages_$(NO_QT) = $(qt_native_packages)
 wallet_packages_$(NO_WALLET) = $(sqlite_packages)
 
 zmq_packages_$(NO_ZMQ) = $(zmq_packages)
-multiprocess_packages_$(MULTIPROCESS) = $(multiprocess_packages)
+ipc_packages_$(NO_IPC) = $(ipc_packages)
 usdt_packages_$(NO_USDT) = $(usdt_$(host_os)_packages)
 
 packages += $($(host_arch)_$(host_os)_packages) $($(host_os)_packages) $(boost_packages_) $(libevent_packages_) $(qt_packages_) $(wallet_packages_) $(usdt_packages_)
@@ -171,8 +172,8 @@ ifneq ($(zmq_packages_),)
 packages += $(zmq_packages)
 endif
 
-ifeq ($(multiprocess_packages_),)
-packages += $(multiprocess_packages)
+ifneq ($(ipc_packages_),)
+packages += $(ipc_packages)
 native_packages += $(multiprocess_native_packages)
 endif
 
@@ -231,7 +232,7 @@ $(host_prefix)/toolchain.cmake : toolchain.cmake.in $(host_prefix)/.stamp_$(fina
             -e 's|@zmq_packages@|$(zmq_packages_)|' \
             -e 's|@wallet_packages@|$(wallet_packages_)|' \
             -e 's|@usdt_packages@|$(usdt_packages_)|' \
-            -e 's|@multiprocess@|$(MULTIPROCESS)|' \
+            -e 's|@ipc_packages@|$(ipc_packages_)|' \
             $< > $@
 	touch $@
 
diff --git a/depends/README.md b/depends/README.md
index db309892..94579109 100644
--- a/depends/README.md
+++ b/depends/README.md
@@ -96,7 +96,7 @@ The following can be set when running make: `make FOO=bar`
 - `NO_ZMQ`: Don't download/build/cache packages needed for enabling ZeroMQ
 - `NO_WALLET`: Don't download/build/cache libs needed to enable the wallet (SQLite)
 - `NO_USDT`: Don't download/build/cache packages needed for enabling USDT tracepoints
-- `MULTIPROCESS`: Build libmultiprocess (experimental)
+- `NO_IPC`: Don't build Cap’n Proto and libmultiprocess packages. Default on Windows.
 - `DEBUG`: Disable some optimizations and enable more runtime checking
 - `HOST_ID_SALT`: Optional salt to use when generating host package ids
 - `BUILD_ID_SALT`: Optional salt to use when generating build package ids
diff --git a/depends/packages/packages.mk b/depends/packages/packages.mk
index b6f100f2..4fee4e18 100644
--- a/depends/packages/packages.mk
+++ b/depends/packages/packages.mk
@@ -20,7 +20,7 @@ sqlite_packages=sqlite
 
 zmq_packages=zeromq
 
-multiprocess_packages = capnp
+ipc_packages = capnp
 multiprocess_native_packages = native_libmultiprocess native_capnp
 
 usdt_linux_packages=systemtap
diff --git a/depends/toolchain.cmake.in b/depends/toolchain.cmake.in
index 34984b85..e31d9eef 100644
--- a/depends/toolchain.cmake.in
+++ b/depends/toolchain.cmake.in
@@ -165,11 +165,12 @@ else()
   set(WITH_USDT ON CACHE BOOL "")
 endif()
 
-if("@multiprocess@" STREQUAL "1")
+set(ipc_packages @ipc_packages@)
+if("${ipc_packages}" STREQUAL "")
+  set(ENABLE_IPC OFF CACHE BOOL "")
+else()
   set(ENABLE_IPC ON CACHE BOOL "")
   set(MPGEN_EXECUTABLE "${CMAKE_CURRENT_LIST_DIR}/native/bin/mpgen" CACHE FILEPATH "")
   set(CAPNP_EXECUTABLE "${CMAKE_CURRENT_LIST_DIR}/native/bin/capnp" CACHE FILEPATH "")
   set(CAPNPC_CXX_EXECUTABLE "${CMAKE_CURRENT_LIST_DIR}/native/bin/capnpc-c++" CACHE FILEPATH "")
-else()
-  set(ENABLE_IPC OFF CACHE BOOL "")
 endif()
diff --git a/doc/multiprocess.md b/doc/multiprocess.md
index 5a91b513..853f077f 100644
--- a/doc/multiprocess.md
+++ b/doc/multiprocess.md
@@ -16,11 +16,11 @@ Specifying `-DENABLE_IPC=ON` requires [Cap'n Proto](https://capnproto.org/) to b
 
 ### Depends installation
 
-Alternately the [depends system](../depends) can be used to avoid need to install local dependencies. A simple way to get started is to pass the `MULTIPROCESS=1` [dependency option](../depends#dependency-options) to make:
+Alternatively the [depends system](../depends) can be used to avoid needing to install local dependencies:
 
 ```
 cd <BITCOIN_SOURCE_DIRECTORY>
-make -C depends NO_QT=1 MULTIPROCESS=1
+make -C depends NO_QT=1
 # Set host platform to output of gcc -dumpmachine or clang -dumpmachine or check the depends/ directory for the generated subdirectory name
 HOST_PLATFORM="x86_64-pc-linux-gnu"
 cmake -B build --toolchain=depends/$HOST_PLATFORM/toolchain.cmake
@@ -29,7 +29,7 @@ build/bin/bitcoin -m node -regtest -printtoconsole -debug=ipc
 BITCOIN_CMD="bitcoin -m" build/test/functional/test_runner.py
 ```
 
-The `cmake` build will pick up settings and library locations from the depends directory, so there is no need to pass `-DENABLE_IPC=ON` as a separate flag when using the depends system (it's controlled by the `MULTIPROCESS=1` option).
+The `cmake` build will pick up settings and library locations from the depends directory, so there is no need to pass `-DENABLE_IPC=ON` as a separate flag when using the depends system (it's controlled by the `NO_IPC=1` option).
 
 ### Cross-compiling