To install the plugin into the 7-Zip installation folder, you need to create a Formats subfolder in the main 7-Zip folder. If you want to unpack the asar (and not worry about offsets), and really go exploring, use 7-Zip with plugins from here (or my mirror). If you change the offset, you’ll receive crash errors.
You’re typing the spaces to not affect the offset of the asar file. Overwrite (insert) false…and use spaces to overwrite the rest. Search for this._appConfig.enableUpdates under updatesEnabled() It works like tar that concatenates all files together without compression, while having random access support.Ĭ:\Program Files (x86)\Microsoft\Skype for Desktop\resources Modify the app.asar file to disable updates. Asar is a simple extensive archive format. I’d like to see if I can add a jump instruction or completely remove the download function using assembly. I’ll probably still throw this into a VM, so I can reverse engineer it. Powershell.exe -noprofile -command “Add-Content -Path C:\Windows\system32\drivers\etc\hosts -Value “”`n127.0.0.1 ””” -force BAM…no more auto updates and no more update chat notifications.Īdd-Content -Path "C:\Windows\system32\drivers\etc\hosts" -Value "`n127.0.0.1 " The fix was just to add that URL with a redirected IP address into the host file. Using Wireshark and the IP address from above, I was able to find the URL in a packet. Using PromMon, I was able to return the setup file name, the Skype installation path, and see where the EXE was being downloaded from (the source).Ĭ:\Users\%username%\AppData\Roaming\Microsoft\Skype for Desktop So, I resorted to using ProcMon and WireShark. I had no luck (note, there are methods for disabling auto updates using Skype for Business-the licensed version). I looked around for a way to disable it, some kind of reg setting, group policy, or config file. So, they are getting prompted to do an installation that they cannot complete Microsoft, just no. End-users won’t have the appropriate permissions to install the update. After installing an older version of Skype for Desktop (in W10), I noticed that Skype was automatically updating to the latest.
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