GHPython Ironpython 2.7.x don't support pythoncom

import pythoncom
import win32com.client

acadobj = win32com.client.Dispatch(“AutoCAD.Application”)
doc = acadobj.ActiveDocument

I can link AutoCAD in Python 3.9.x standalone
but I use these code in Grasshopper GHpython script ,it don’t work ,
“1. Solution exception:No module named pythoncom”
“1. Solution exception:No module named win32com.client”,
it seems IronPython 2.7 don’t support pythoncom?

I am not sure if this helps, but maybe you can find useful information in these threads:
Also make sure that your modules are compatible with Python 2.7