diff --git a/CMakeLists.txt b/CMakeLists.txt
index fd17283f77..7a6cef1ac2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -431,6 +431,9 @@ if (WIN32)
 else()
   set (USE_D3D OFF)
 endif()
+  # IfcOpenShell begin
+  add_definitions(-DHAVE_NO_DLL)
+  # IfcOpenShell end
 
 # Enable/Disable the floating point exceptions (FPE) during runtime.
 if (NOT BUILD_ENABLE_FPE_SIGNAL_HANDLER)
@@ -826,6 +829,8 @@ if (EMSCRIPTEN)
   list (REMOVE_ITEM BUILD_TOOLKITS ExpToCasExe)
 endif()
 
+list (REMOVE_ITEM BUILD_TOOLKITS ExpToCasExe)
+
 # bison
 if (BUILD_YACCLEX)
   OCCT_INCLUDE_CMAKE_FILE ("adm/cmake/bison")
diff --git a/adm/cmake/occt_defs_flags.cmake b/adm/cmake/occt_defs_flags.cmake
index 33b50e8ce7..6b0628235e 100644
--- a/adm/cmake/occt_defs_flags.cmake
+++ b/adm/cmake/occt_defs_flags.cmake
@@ -153,7 +153,23 @@ elseif (DEFINED CMAKE_COMPILER_IS_GNUCXX)
   set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -s")
 endif()
 
-if (BUILD_RELEASE_DISABLE_EXCEPTIONS)
-  set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -DNo_Exception")
-  set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -DNo_Exception")
-endif()
+# IfcOpenShell begin
+# https://salsa.debian.org/science-team/opencascade/blob/739e7e9c4fbe575165eb3ff0251774bfad27139e/debian/patches/enable-exception-handling.patch
+# if (BUILD_RELEASE_DISABLE_EXCEPTIONS)
+#   set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -DNo_Exception")
+#   set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -DNo_Exception")
+# endif()
+
+if (MSVC AND MSVC_STATIC_RUNTIME)
+    foreach(flag CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE CMAKE_CXX_FLAGS_MINSIZEREL
+            CMAKE_CXX_FLAGS_RELWITHDEBINFO CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
+            CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO)
+        if (${flag} MATCHES "/MD")
+            string(REGEX REPLACE "/MD" "/MT" ${flag} "${${flag}}")
+        endif()
+        if (${flag} MATCHES "/MDd")
+            string(REGEX REPLACE "/MDd" "/MTd" ${flag} "${${flag}}")
+        endif()
+    endforeach()
+endif()
+# IfcOpenShell end
diff --git a/adm/cmake/occt_toolkit.cmake b/adm/cmake/occt_toolkit.cmake
index 132890bc84..7e74b1f489 100644
--- a/adm/cmake/occt_toolkit.cmake
+++ b/adm/cmake/occt_toolkit.cmake
@@ -284,9 +284,22 @@ else()
     else()
       set (aReleasePdbConf)
     endif()
-    install (FILES  ${CMAKE_BINARY_DIR}/${OS_WITH_BIT}/${COMPILER}/bin\${OCCT_INSTALL_BIN_LETTER}/${PROJECT_NAME}.pdb
-             CONFIGURATIONS Debug ${aReleasePdbConf} RelWithDebInfo
-             DESTINATION "${INSTALL_DIR_BIN}\${OCCT_INSTALL_BIN_LETTER}")
+    # IfcOpenShell begin
+    if (BUILD_SHARED_LIBS)
+      install (FILES  ${CMAKE_BINARY_DIR}/${OS_WITH_BIT}/${COMPILER}/bin\${OCCT_INSTALL_BIN_LETTER}/${PROJECT_NAME}.pdb
+               CONFIGURATIONS Debug ${aReleasePdbConf} RelWithDebInfo
+               DESTINATION "${INSTALL_DIR_BIN}\${OCCT_INSTALL_BIN_LETTER}")
+    else()
+      set_target_properties (${PROJECT_NAME} PROPERTIES
+        COMPILE_PDB_NAME ${PROJECT_NAME}
+        COMPILE_PDB_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${OS_WITH_BIT}/${COMPILER}/pdb/
+      )
+
+      install (FILES  ${CMAKE_BINARY_DIR}/${OS_WITH_BIT}/${COMPILER}/pdb/\${CMAKE_INSTALL_CONFIG_NAME}/${PROJECT_NAME}.pdb
+               CONFIGURATIONS Debug ${aReleasePdbConf} RelWithDebInfo
+               DESTINATION "${INSTALL_DIR_LIB}\${OCCT_INSTALL_BIN_LETTER}")
+    endif()
+    # IfcOpenShell end
   endif()
 
   if (BUILD_SHARED_LIBS AND NOT "${BUILD_SHARED_LIBRARY_NAME_POSTFIX}" STREQUAL "")