Optional. Grants to the specified Windows accounts the specified access to the archive.
The new values supplement any existing access rights. You can have many occurrences of GrantAccess within the same [ArchivePermissions] section.
Possible values:
A list of permissions, followed by a comma and then a comma-delimited list of groups or accounts that are granted the specified permissions. Permissions can be any of read, write, and delete, followed by a comma. For example, to grant read and write access to ourdomain\smith:
GrantAccess = read write, ourdomain\smith