![]() SRP rules apply to all users on a particular computer.ĪppLocker rules can be targeted to a specific user or a group of users.ĪppLocker rules can have exceptions, which allow you to create rules such as "Allow everything from Windows except for regedit.exe". Targeting a rule to a user or a group of users appx is a valid file type which AppLocker can manage. Manage Packaged apps and Packaged app installers. On Windows 7, that list was restricted to just two levels: Disallowed and Unrestricted (Basic User translates to Disallowed).ĪppLocker doesn't support security levels. SRP on Windows Vista and earlier supported multiple security levels. So, you can configure a rule such that Notepad always runs with restricted permissions and never with administrative privileges. With SRP, you can specify the permissions with which an app can run. Internally, it uses the SHA2 Authenticode hash for Portable Executables (exe and dll) and Windows Installers and an SHA2 flat file hash for the rest. Beginning with Windows 7 and Windows Server 2008 R2, you can only select the file to hash, and not provide the hash value.ĪppLocker computes the hash value itself. In Windows XP, you could use SRP to provide custom hash values. Administrators can add extensions for files that should be considered executable.ĪppLocker currently supports the following file extensions: SRP supports an extensible list of file types that are considered executable. Packaged apps and installers AppLocker maintains a separate rule collection for each of the five file types.All SRP rules are in a single rule collection.ĪppLocker can control the following file types: Windows Installers SRP can't control each file type separately.SRP can control the following file types: In "allowlist mode", administrators need to create allow rules for files that they want to run.ĪppLocker by default works in the "allowlist mode" where only those files are allowed to run for which there's a matching allow rule. SRP can also be configured in the "allowlist mode" so that by default all files are blocked. SRP works in the "blocklist mode" where administrators can create rules for files that they don't want to allow in this Enterprise whereas the rest of the file is allowed to run by default. SRP policies are distributed through Group Policy.ĪppLocker policies are distributed through Group Policy. SRP policies must be updated by using the Local Security Policy snap-in (if the policies are created locally) or the Group Policy Management Console (GPMC).ĪppLocker policies can be updated by using the Local Security Policy snap-in (if the policies are created locally), or the GPMC, or the Windows PowerShell AppLocker cmdlets. AppLocker permits customization of error messages to direct users to a Web page for help. The administrator on the local computer can modify the AppLocker policies defined in the local GPO. The administrator on the local computer can modify the SRP policies defined in the local GPO.ĪppLocker policies are maintained through Group Policy and only the administrator of the GPO can update the policy. ![]() SRP policies are maintained through Group Policy and only the administrator of the GPO can update the SRP policy. ![]() SRP policies can be applied to all Windows operating systems beginning with Windows XP and Windows Server 2003.ĪppLocker policies apply only to Windows Server 2008 R2, Windows 7, and later. The following table compares the features and functions of Software Restriction Policies (SRP) and AppLocker. When both SRP and AppLocker policies are applied to computers running Windows Server 2008 R2, Windows 7 and later, the SRP policies are ignored. It's recommended that you author AppLocker and SRP rules in separate GPOs and target the GPO with SRP policies to systems running Windows Vista or earlier. You can continue to use SRP for application control on your pre-Windows 7 computers, but use AppLocker for computers running Windows Server 2008 R2, Windows 7 and later. Software Restriction Policies (SRP) is supported on systems running Windows Vista or earlier. Using AppLocker and Software Restriction Policies in the same domainĪppLocker is supported on systems running Windows 8.1. You should use Windows Defender Application Control (WDAC) or AppLocker to control what software runs. Software Restriction Policies were deprecated beginning with Windows 10 build 1803 and above, and also applies to Windows Server 2019 and above. ![]()
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