diff --git a/CMakeLists.txt b/CMakeLists.txt
index fca978164..dda41e2c6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -426,6 +426,9 @@ endforeach()
 if (NOT BUILD_SHARED_LIBS)
   list (REMOVE_ITEM BUILD_TOOLKITS DRAWEXE)
   message (STATUS "Info: DRAWEXE is not included due to ${BUILD_LIBRARY_TYPE} build library type")
+  # IfcOpenShell begin
+  add_definitions(-DHAVE_NO_DLL)
+  # IfcOpenShell end
 endif()
 
 # accumulate all used toolkits
diff --git a/adm/cmake/occt_defs_flags.cmake b/adm/cmake/occt_defs_flags.cmake
index 09da18d38..a07b9cf74 100644
--- a/adm/cmake/occt_defs_flags.cmake
+++ b/adm/cmake/occt_defs_flags.cmake
@@ -138,5 +138,21 @@ if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX OR MINGW)
   set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -s")
 endif()
 
-set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -DNo_Exception")
-set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -DNo_Exception")
+# IfcOpenShell begin
+# https://salsa.debian.org/science-team/opencascade/blob/739e7e9c4fbe575165eb3ff0251774bfad27139e/debian/patches/enable-exception-handling.patch
+# set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -DNo_Exception")
+# set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -DNo_Exception")
+
+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" ${flag} "${${flag}}")
+        endif()
+    endforeach()
+endif()
+# IfcOpenShell end
diff --git a/adm/cmake/occt_toolkit.cmake b/adm/cmake/occt_toolkit.cmake
index f59b1639d..aee227516 100644
--- a/adm/cmake/occt_toolkit.cmake
+++ b/adm/cmake/occt_toolkit.cmake
@@ -208,11 +208,26 @@ if (EXECUTABLE_PROJECT)
 else()
   add_library (${PROJECT_NAME} ${USED_SRCFILES} ${USED_INCFILES} ${USED_RCFILE} ${RESOURCE_FILES} ${${PROJECT_NAME}_MOC_FILES})
 
-  if (MSVC)
-    install (FILES  ${CMAKE_BINARY_DIR}/${OS_WITH_BIT}/${COMPILER}/bin\${OCCT_INSTALL_BIN_LETTER}/${PROJECT_NAME}.pdb
-             CONFIGURATIONS Debug RelWithDebInfo
-             DESTINATION "${INSTALL_DIR_BIN}\${OCCT_INSTALL_BIN_LETTER}")
+  # IfcOpenShell begin
+  if (BUILD_SHARED_LIBS)
+    if (MSVC)
+      install (FILES  ${CMAKE_BINARY_DIR}/${OS_WITH_BIT}/${COMPILER}/bin\${OCCT_INSTALL_BIN_LETTER}/${PROJECT_NAME}.pdb
+               CONFIGURATIONS Debug RelWithDebInfo
+               DESTINATION "${INSTALL_DIR_BIN}\${OCCT_INSTALL_BIN_LETTER}")
+    endif()
+  else()
+    if (MSVC)
+      set_target_properties (${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 RelWithDebInfo
+               DESTINATION "${INSTALL_DIR_LIB}\${OCCT_INSTALL_BIN_LETTER}")
+    endif()
   endif()
+  # IfcOpenShell end
 
   if (BUILD_SHARED_LIBS AND NOT "${BUILD_SHARED_LIBRARY_NAME_POSTFIX}" STREQUAL "")
     set (CMAKE_SHARED_LIBRARY_SUFFIX_DEFAULT ${CMAKE_SHARED_LIBRARY_SUFFIX})