PowerShell script to tick proxy settings : "Use automatic configuration script" AND "Automatically detect settings"

Question

I want to create a Powershell script to automatically tick the proxy settings "Automatically detect settings" and "Use automatic configuration script" as : Proxy Settings

So I found some tips, I am able to tick "Use automatic configuration script" with my proxy address with :

set-itemproperty 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Internet Settings' -name AutoConfigURL -value 'proxy address'

And I am able to tick "Automatically detect settings" with

$key = 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections'
$data = (Get-ItemProperty -Path $key -Name DefaultConnectionSettings).DefaultConnectionSettings
$data[8] = 9
Set-ItemProperty -Path $key -Name DefaultConnectionSettings -Value $data

But If I try both like to put the two codes on the same script it doesn't work and only "Use automatic configuration script" is ticked.

I also saw that I can use the value 0d from : Source.

But when I tried that the output is "Error: Input string was not in a correct format."

Do you have any Idea on how I can do this ? Thank you.

Try [byte[]]$data = (Get-ItemProperty -Path $key -Name DefaultConnectionSettings).DefaultConnectionSettings and Set-ItemProperty -Path $key -Name DefaultConnectionSettings -Value $data -PropertyType Binary — Theo
– Theo, Commented Mar 12, 2020 at 12:32
So i tried your lines putting 0d as value for $data[8] But I still get the same error : Error: "Input string was not in a correct format." Any other Ideas ? thanks — Tommy Rivers
– Tommy Rivers, Commented Mar 13, 2020 at 11:35
Then how do you set the value of byte[8] exactly? I think the error you show refers to that part. Use $data[8] = 0x0d or $data[8] = 13 — Theo
– Theo, Commented Mar 13, 2020 at 11:43
Hi Theo, Thanks for that it worked for me with $data[8] = 0x0d — Tommy Rivers
– Tommy Rivers, Commented Mar 18, 2020 at 15:59

tdsan · Accepted Answer · 2021-08-07 16:48:12Z

3

[byte[]]$data = (Get-ItemProperty -Path $key -Name DefaultConnectionSettings).DefaultConnectionSettings

change to

[byte[]]$data = (Get-ItemProperty -Path $key).DefaultConnectionSettings

Overall, this is wonderful, great job Theo, thank you for sharing.

Todd

answered Aug 7, 2021 at 16:48

tdsan

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