exchange server 2019 from cu9 to cu11

[itsys110]

I updated exchange server 2019 from cu9 to cu11.. without any issues except 3 files corrupted in:
C:\Program Files\Microsoft\Exchange Server\V15\FrontEnd\HttpProxy\oab

web.config
web.config.bak
global.asax

can anyone help me with these files? just copy these files from this path in your exchange 2019 cu11 and send me.. i read that it works.
pls comment if u have exch2019 cu11.

[#2]

How did you find out that the files are corrupted?

If they truly are, you can try several things:
1. Run Updatecas.ps1 and updateconfigfiles.ps1
2. To copy the content of those files into a new notepad, and then save it as a normal file
3. Copy healthy files form a working server to this one and update the server names and directories if needed.

[#3]

thank you for your reply!

I found out the files are corrupted as I was getting an error from the event viewer for oab pointing to this location C:\Program Files\Microsoft\Exchange Server\V15\FrontEnd\HttpProxy\oab;
after searching i found out web.config was only 1 kb and it had only few lines, actually it should be 6 kb and more lines.

can you please tell me:

1. what exactly happens if i run updatecas.ps1 and updateconfigfiles.ps1?
will it recreate oab virtual directories??

2. copy content of the existing files?

3. i have only one node, i do not have another healthy server, if you have these files can you send me those?

thank you

[#4]

1. No the step will recreate the config files themselves. You can recreate the virtual directories by running Get-OABVirtualDirectory -Server "affected server" | Remove-OabVirtualDirectory, followed by New-OABVirtualDirectoy. I would first do a Get-OABVirtualDirectory -Server "affected server" | fl to have the config so I can set it up again as it was.

2. Yes, just open the web.config with notepad and copy it to e new file and then save it as a .config file.

3. Sorry, not keeping my labs up to date, and I don't have an active lab for 2019 currently.