'WUAPI for Windows 10 Feature Update gives empty download URL

I'm trying to search windows updates by WUAPI. I can search and find updates as i need. I can also get their download link from BundledUpdates property.

My Problem:

All other updates gives download URL in BundledUpdates but when it comes to Feature Updates (1909,2004)etc. It doesn't give me download link. When i check update.DownloadContents there are about 7000 links. As far as i understand this links are parts of this big update.

But there is no one single link for downloading feature update.

Why do i look for single link ? Because i went to check WSUS DB and i saw same update there and there is single link for downloading feature update something like :

http://b1.download.windowsupdate.com/d/upgr/2020/10/19042.508.200927-1902.20h2_release_svc_refresh_clientbusiness_vol_x64fre_tr-tr_000aee07e032484d6879126b87f0b3dceb8ce0dc.esd

This file size is about 3GB

I was hoping i can get this link from IUpdate object but its missing for feature updates. I don't know how WSUS finds this address but this address is not inside of update object itself when i scan with WUAPI.

My Question: Where can i get static link for windows feature updates by using WUAPI? And how WSUS creates/finds direct URL to windows feature updates ?



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