diff -Nur os-win-5.9.0/os_win/utils/winapi/libs/iscsidsc.py python-build-CLANGARM64/os_win/utils/winapi/libs/iscsidsc.py
--- os-win-5.9.0/os_win/utils/winapi/libs/iscsidsc.py	2023-02-10 16:29:54.000000000 +0000
+++ python-build-CLANGARM64/os_win/utils/winapi/libs/iscsidsc.py	2023-04-03 23:29:53.452842500 +0000
@@ -184,6 +184,7 @@
 
 
 def register():
+  try:
     global lib_handle
     lib_handle = ctypes.windll.iscsidsc
 
@@ -265,3 +266,5 @@
         wintypes.PWCHAR
     ]
     lib_handle.ReportIScsiTargetsW.restype = wintypes.ULONG
+  except FileNotFoundError:
+    pass