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WinRAR will not be able to change system integration settings after that. If you wish to prohibit any operations with Registry, add Global\Integration=0 to WinRAR.ini. For example, it happens when using Integration settings dialog. While WinRAR redirects its branches of HKEY_CURRENT_USER and HKEY_LOCAL_MACHINE Registry keys to WinRAR.ini, it still writes data to HKEY_CLASSES_ROOT and other parts of Registry required to properly set the shell extension and file associations. Specify Global\AppData=1 to allow access to APPDATA%\WinRAR.
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All files normally stored in this folder, such as registration key or interface themes, should be stored in the same folder as WinRAR.exe if Global\AppData=0 is specified. Prohibit WinRAR to access APPDATA%\WinRAR folder. All these strings use UTF-16LE encoding and are case sensitive, enter them exactly as mentioned here. If you disabled write access with read-only attribute, you can add an appropriate string to WinRAR.ini manually, one command per line. These strings are created at the top of WinRAR.ini. If write access to WinRAR.ini is not disabled, WinRAR creates strings listed below automatically and you need to edit a parameter after "=" to change an option. You can change global settings to control WinRAR.ini behavior.
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String values are enclosed in quote marks and byte arrays have "bin:" prefix. Where can be HKCU for HKEY_CURRENT_USER, HKLM for HKEY_LOCAL_MACHINE and Global for global settings added by user manually. They are saved as case sensitive UTF-16LE text strings in following format: Typically current settings are written to WinRAR.ini only on exit, until that they are stored in memory. You need to copy a file created with this command either to WinRAR own folder or to %APPDATA%\WinRAR to make it active. Use "Create WinRAR.ini file" command in "Import/Export" submenu to create a new WinRAR.ini file and copy existing WinRAR settings from Registry to this file.
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WinRAR searchs for this file first in its own folder and next in %APPDATA%\WinRAR. If you create an empty WinRAR.ini file either in the same folder as WinRAR.exe or in %APPDATA%\WinRAR folder, WinRAR will redirect access to HKEY_CURRENT_USER\Software\WinRAR and HKEY_LOCAL_MACHINE\Software\WinRAR Registry keys to this file. It is possible to redirect WinRAR Registry access to text file.
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But if you plan to install WinRAR on removable media, such as USB flash drive, and then run it on different computers occasionally, you may prefer to avoid storing any WinRAR specific data in Registry on those computers. Such approach is reasonable when WinRAR is installed and used on the same single computer. By default WinRAR stores settings in Registry.
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