diff --git a/.github/actions/initialize-windows-env/action.yml b/.github/actions/initialize-windows-env/action.yml
new file mode 100644
index 000000000..60e8673fd
--- /dev/null
+++ b/.github/actions/initialize-windows-env/action.yml
@@ -0,0 +1,9 @@
+name: initialize-env
+description: Initialize environment
+runs:
+  using: 'composite'
+  steps:
+    - name: Setup Ninja
+      uses: ashutoshvarma/setup-ninja@v1.1
+      with:
+        version: 1.10.0
diff --git a/.github/workflows/build-asy-main.yml b/.github/workflows/build-asy-main.yml
index 2f50521b4..19c2e5d08 100644
--- a/.github/workflows/build-asy-main.yml
+++ b/.github/workflows/build-asy-main.yml
@@ -1,9 +1,13 @@
 name: build-asy-cxx
 on:
+  workflow_dispatch:
   pull_request:
     branches:
       - "master"
       - "a/*"
+  push:
+    branches:
+      - msvc-support
 jobs:
   configure-linux-release-x64:
     runs-on: "ubuntu-22.04"
diff --git a/.github/workflows/build-asy-windows.yml b/.github/workflows/build-asy-windows.yml
index 4f85ae7b9..058ad3ac1 100644
--- a/.github/workflows/build-asy-windows.yml
+++ b/.github/workflows/build-asy-windows.yml
@@ -1,18 +1,79 @@
 name: build-asy-cxx-windows
 on:
+  workflow_dispatch:
   pull_request:
     branches:
       - "master"
       - "a/*"
+  push:
+    branches:
+      - msvc-support
 jobs:
   configure-windows-msvc-x64:
     runs-on: "windows-2022"
     steps:
-      - shell: pwsh
-        run: Write-Output "hi"
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 1
+      - uses: ./.github/actions/initialize-windows-env
+      - name: Cache Vcpkg
+        id: cache-vcpkg
+        uses: actions/cache@v3
+        with:
+          path: ~\AppData\Local\vcpkg\archives
+          key: ${{ runner.os }}-vcpkg-cache
+      - name: Configure MSVC-Release
+        shell: pwsh
+        run: |
+          $VsInfo = Get-CimInstance MSFT_VSInstance -Namespace root/cimv2/vs
+          & "$($VsInfo.InstallLocation)\\Common7\\Tools\\Launch-VsDevShell.ps1" -Arch amd64 -HostArch amd64 -SkipAutomaticLocation
+          $env:VCPKG_ROOT = "$env:VCPKG_INSTALLATION_ROOT"
+          cmake --preset msvc/release
+      - name: zip cmake configuration
+        shell: pwsh
+        # Compress-Archive cmdlet does not support hidden files
+        run: |
+          $loc = Get-Location
+          [System.IO.Compression.ZipFile]::CreateFromDirectory(`
+            "$($loc.Path)\cmake-build-msvc",`
+            "$($loc.Path)\cmake-msvc-x64-release-cfg.zip",`
+            [System.IO.Compression.CompressionLevel]::NoCompression,`
+            $true`
+          )
+      - name: Upload configuration artifacts
+        uses: actions/upload-artifact@v3
+        with:
+          name: cmake-msvc-x64-release-cfg-zip
+          path: cmake-msvc-x64-release-cfg.zip
   build-windows-msvc-x64:
     needs: configure-windows-msvc-x64
     runs-on: "windows-2022"
     steps:
-      - shell: pwsh
-        run: Write-Output "hi"
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 1
+      - uses: ./.github/actions/initialize-windows-env
+      - name: Download configuration artifacts
+        uses: actions/download-artifact@v3
+        with:
+          name: cmake-msvc-x64-release-cfg-zip
+      - name: Unzip configuration artifact
+        run: |
+          Expand-Archive `
+          -Path cmake-msvc-x64-release-cfg.zip `
+          -DestinationPath .
+      - name: Build asymptote on windows
+        run: |
+          $VsInfo = Get-CimInstance MSFT_VSInstance -Namespace root/cimv2/vs
+          & "$($VsInfo.InstallLocation)\\Common7\\Tools\\Launch-VsDevShell.ps1" -Arch amd64 -HostArch amd64 -SkipAutomaticLocation
+          $env:VCPKG_ROOT = "$env:VCPKG_INSTALLATION_ROOT"
+          cmake --build --preset msvc/release --target asy-with-basefiles -j
+      - name: Archive Asymptote build
+        uses: actions/upload-artifact@v3
+        with:
+          name: asy-win-x64-buildfiles
+          path: |
+            cmake-build-msvc/release/asy.exe
+            cmake-build-msvc/release/base
+            cmake-build-msvc/release/CTestTestfile.cmake
+            cmake-build-msvc/release/*.dll
diff --git a/cmake-scripts/generated-files.cmake b/cmake-scripts/generated-files.cmake
index 694558d6d..3518bddce 100644
--- a/cmake-scripts/generated-files.cmake
+++ b/cmake-scripts/generated-files.cmake
@@ -1,6 +1,16 @@
+# generated include directories
 set(GENERATED_INCLUDE_DIR "${CMAKE_CURRENT_BINARY_DIR}/generated/include")
 file(MAKE_DIRECTORY ${GENERATED_INCLUDE_DIR})
 
+# directory for auxilliary files
+set(GENERATED_AUX_DIR "${CMAKE_CURRENT_BINARY_DIR}/generated/auxiliary")
+file(MAKE_DIRECTORY ${GENERATED_AUX_DIR})
+
+# generated sources
+set(GENERATED_SRC_DIR "${CMAKE_CURRENT_BINARY_DIR}/generated/src")
+file(MAKE_DIRECTORY ${GENERATED_SRC_DIR})
+
+
 # opsymbols.h
 add_custom_command(
         OUTPUT ${GENERATED_INCLUDE_DIR}/opsymbols.h
@@ -14,14 +24,9 @@ add_custom_command(
 
 list(APPEND ASYMPTOTE_INCLUDES ${GENERATED_INCLUDE_DIR})
 list(APPEND ASYMPTOTE_GENERATED_HEADERS ${GENERATED_INCLUDE_DIR}/opsymbols.h)
-
-# generated sources
-set(GENERATED_SRC_DIR "${CMAKE_CURRENT_BINARY_DIR}/generated/src")
-file(MAKE_DIRECTORY ${GENERATED_SRC_DIR})
-
+list(APPEND ASYMPTOTE_SYM_PROCESS_NEEDED_HEADERS ${GENERATED_INCLUDE_DIR}/opsymbols.h)
 
 # run-* files
-
 function(_int_add_runtime_file runtime_file)
     set(RUNTIME_FILE_IN_BASE ${ASY_SRC_TEMPLATES_DIR}/${runtime_file})
     set(RUNTIME_FILES_OUT ${GENERATED_SRC_DIR}/${runtime_file}.cc ${GENERATED_INCLUDE_DIR}/${runtime_file}.h)
@@ -47,24 +52,85 @@ macro(add_runtime_file runtime_file)
     list(APPEND ASY_GENERATED_BUILD_SOURCES
             ${GENERATED_SRC_DIR}/${runtime_file}.cc
     )
-    list(APPEND ASYMPTOTE_GENERATED_HEADERS
-            ${GENERATED_INCLUDE_DIR}/${runtime_file}.h)
+    set(_ASY_GENERATED_HEADER_NAME ${GENERATED_INCLUDE_DIR}/${runtime_file}.h)
+    list(APPEND ASYMPTOTE_GENERATED_HEADERS ${_ASY_GENERATED_HEADER_NAME})
+    list(APPEND ASYMPTOTE_SYM_PROCESS_NEEDED_HEADERS ${_ASY_GENERATED_HEADER_NAME})
 endmacro()
 
 foreach(RUNTIME_FILE ${RUNTIME_BUILD_FILES})
     add_runtime_file(${RUNTIME_FILE})
 endforeach()
 
+# keywords.h
+set(KEYWORDS_HEADER_OUT ${GENERATED_INCLUDE_DIR}/keywords.h)
+add_custom_command(
+        OUTPUT ${KEYWORDS_HEADER_OUT}
+        COMMAND ${PERL_INTERPRETER} ${ASY_SCRIPTS_DIR}/keywords.pl
+            --camplfile ${ASY_RESOURCE_DIR}/camp.l
+            --output ${GENERATED_INCLUDE_DIR}/keywords.h
+            --process-file ${ASY_SRC_DIR}/process.cc
+        MAIN_DEPENDENCY ${ASY_RESOURCE_DIR}/camp.l
+        DEPENDS ${ASY_SCRIPTS_DIR}/keywords.pl ${ASY_SRC_DIR}/process.cc
+)
 
-# allsymbols.h
-# directory for auxilliary files
-set(GENERATED_AUX_DIR "${CMAKE_CURRENT_BINARY_DIR}/generated/auxiliary")
-file(MAKE_DIRECTORY ${GENERATED_AUX_DIR})
+list(APPEND ASYMPTOTE_GENERATED_HEADERS ${KEYWORDS_HEADER_OUT})
+list(APPEND ASYMPTOTE_SYM_PROCESS_NEEDED_HEADERS ${KEYWORDS_HEADER_OUT})
 
-# generating preprocessed files
+set(camp_lex_output ${GENERATED_SRC_DIR}/lex.yy.cc)
+set(camp_l_file ${ASY_RESOURCE_DIR}/camp.l)
 
-set(FINDSYM_FILE ${ASY_SCRIPTS_DIR}/findsym.pl)
+if (WIN32)
+    list(APPEND FLEX_ARGS --wincompat)
+endif()
+
+# flex + bison
+
+# flex
+add_custom_command(
+        OUTPUT ${camp_lex_output}
+        COMMAND ${FLEX_EXECUTABLE} ${FLEX_ARGS} -o ${camp_lex_output} ${camp_l_file}
+        MAIN_DEPENDENCY ${camp_l_file}
+)
+
+list(APPEND ASY_GENERATED_BUILD_SOURCES ${camp_lex_output})
+
+# bison
+set(bison_output ${GENERATED_SRC_DIR}/camp.tab.cc)
+set(bison_header ${GENERATED_INCLUDE_DIR}/camp.tab.h)
+set(bison_input ${ASY_RESOURCE_DIR}/camp.y)
+add_custom_command(
+        OUTPUT ${bison_output} ${bison_header}
+        COMMAND ${BISON_EXECUTABLE} -t --header=${bison_header} -o ${bison_output} ${bison_input}
+        MAIN_DEPENDENCY ${bison_input}
+)
+
+list(APPEND ASY_GENERATED_BUILD_SOURCES ${bison_output})
+list(APPEND ASYMPTOTE_GENERATED_HEADERS ${bison_header})
+list(APPEND ASYMPTOTE_SYM_PROCESS_NEEDED_HEADERS ${bison_header})
+
+# generate enums from csv
+foreach(csv_enum_file ${ASY_CSV_ENUM_FILES})
+    set(generated_header_file ${GENERATED_INCLUDE_DIR}/${csv_enum_file}.h)
+
+    add_custom_command(
+            OUTPUT ${generated_header_file}
+            COMMAND ${PY3_INTERPRETER} ${ASY_SCRIPTS_DIR}/generate_enums.py
+            --language cpp
+            --name ${csv_enum_file}
+            --input ${ASY_RESOURCE_DIR}/${csv_enum_file}.csv
+            --output ${generated_header_file}
+            --xopt namespace=camp
+            MAIN_DEPENDENCY ${ASY_RESOURCE_DIR}/${csv_enum_file}.csv
+            DEPENDS ${ASY_SCRIPTS_DIR}/generate_enums.py
+    )
 
+    list(APPEND ASYMPTOTE_GENERATED_HEADERS ${generated_header_file})
+    list(APPEND ASYMPTOTE_SYM_PROCESS_NEEDED_HEADERS ${generated_header_file})
+endforeach ()
+
+# raw.i files
+# generating preprocessed files
+set(FINDSYM_FILE ${ASY_SCRIPTS_DIR}/findsym.pl)
 # combine all files into allsymbols.h
 function(symfile_preprocess src_dir symfile symfile_raw_output_varname header_output_varname)
     set(symfile_raw_output_var ${symfile_raw_output_varname})
@@ -98,7 +164,9 @@ function(symfile_preprocess src_dir symfile symfile_raw_output_varname header_ou
             ${msvc_flag}
             DEPFILE ${GENERATED_AUX_DIR}/${symfile}.d
             BYPRODUCTS ${GENERATED_AUX_DIR}/${symfile}.d
-            DEPENDS ${src_dir}/${symfile}.cc ${ASY_SCRIPTS_DIR}/gen_preprocessed_depfile.py
+            DEPENDS ${src_dir}/${symfile}.cc
+            ${ASY_SCRIPTS_DIR}/gen_preprocessed_depfile.py
+            ${ASYMPTOTE_SYM_PROCESS_NEEDED_HEADERS}
             VERBATIM
     )
     # *.symbols.h file
@@ -112,12 +180,9 @@ function(symfile_preprocess src_dir symfile symfile_raw_output_varname header_ou
                 ${processed_output_file}
             MAIN_DEPENDENCY ${processed_output_file}
     )
-
-
 endfunction()
 
 # preprocess each individual symbol files
-
 foreach(SYM_FILE ${SYMBOL_STATIC_BUILD_FILES})
     symfile_preprocess(${ASY_SRC_DIR} ${SYM_FILE} SYMFILE_OUT HEADER_OUT)
     list(APPEND SYMFILE_OUT_LIST ${SYMFILE_OUT})
@@ -130,6 +195,7 @@ foreach(SYM_FILE ${RUNTIME_BUILD_FILES})
     list(APPEND ASYMPTOTE_GENERATED_HEADERS ${HEADER_OUT})
 endforeach ()
 
+# allsymbols.h
 add_custom_command(
         OUTPUT ${GENERATED_INCLUDE_DIR}/allsymbols.h
         COMMAND ${PERL_INTERPRETER} ${FINDSYM_FILE}
@@ -140,77 +206,12 @@ add_custom_command(
 
 list(APPEND ASYMPTOTE_GENERATED_HEADERS ${GENERATED_INCLUDE_DIR}/allsymbols.h)
 
-# keywords.h
-
-add_custom_command(
-        OUTPUT ${GENERATED_INCLUDE_DIR}/keywords.h
-        COMMAND ${PERL_INTERPRETER} ${ASY_SCRIPTS_DIR}/keywords.pl
-            --camplfile ${ASY_RESOURCE_DIR}/camp.l
-            --output ${GENERATED_INCLUDE_DIR}/keywords.h
-            --process-file ${ASY_SRC_DIR}/process.cc
-        MAIN_DEPENDENCY ${ASY_RESOURCE_DIR}/camp.l
-        DEPENDS ${ASY_SCRIPTS_DIR}/keywords.pl ${ASY_SRC_DIR}/process.cc
-)
-
-list(APPEND ASYMPTOTE_GENERATED_HEADERS ${GENERATED_INCLUDE_DIR}/keywords.h)
-
-set(camp_lex_output ${GENERATED_SRC_DIR}/lex.yy.cc)
-set(camp_l_file ${ASY_RESOURCE_DIR}/camp.l)
-
-if (WIN32)
-    list(APPEND FLEX_ARGS --wincompat)
-endif()
-
-# flex + bison
-add_custom_command(
-        OUTPUT ${camp_lex_output}
-        COMMAND ${FLEX_EXECUTABLE} ${FLEX_ARGS} -o ${camp_lex_output} ${camp_l_file}
-        MAIN_DEPENDENCY ${camp_l_file}
-)
-
-list(APPEND ASY_GENERATED_BUILD_SOURCES ${camp_lex_output})
-
-# bison
-
-set(bison_output ${GENERATED_SRC_DIR}/camp.tab.cc)
-set(bison_header ${GENERATED_INCLUDE_DIR}/camp.tab.h)
-set(bison_input ${ASY_RESOURCE_DIR}/camp.y)
-add_custom_command(
-        OUTPUT ${bison_output} ${bison_header}
-        COMMAND ${BISON_EXECUTABLE} -t --header=${bison_header} -o ${bison_output} ${bison_input}
-        MAIN_DEPENDENCY ${bison_input}
-)
-
-list(APPEND ASY_GENERATED_BUILD_SOURCES ${bison_output})
-list(APPEND ASYMPTOTE_GENERATED_HEADERS ${bison_header})
-
 # macro files
 message(STATUS "Generating revision.cc file")
 set(revision_cc_file ${GENERATED_SRC_DIR}/revision.cc)
 configure_file(${ASY_RESOURCE_DIR}/template_rev.cc.in ${revision_cc_file})
 list(APPEND ASY_GENERATED_BUILD_SOURCES ${revision_cc_file})
 
-# generate enums from csv
-
-
-foreach(csv_enum_file ${ASY_CSV_ENUM_FILES})
-    set(generated_header_file ${GENERATED_INCLUDE_DIR}/${csv_enum_file}.h)
-
-    add_custom_command(
-            OUTPUT ${generated_header_file}
-            COMMAND ${PY3_INTERPRETER} ${ASY_SCRIPTS_DIR}/generate_enums.py
-            --language cpp
-            --name ${csv_enum_file}
-            --input ${ASY_RESOURCE_DIR}/${csv_enum_file}.csv
-            --output ${generated_header_file}
-            --xopt namespace=camp
-            MAIN_DEPENDENCY ${ASY_RESOURCE_DIR}/${csv_enum_file}.csv
-            DEPENDS ${ASY_SCRIPTS_DIR}/generate_enums.py
-    )
-
-    list(APPEND ASYMPTOTE_GENERATED_HEADERS ${generated_header_file})
-endforeach ()
-
 add_custom_target(asy_gen_headers
         DEPENDS ${ASYMPTOTE_GENERATED_HEADERS}
 )