What are the steps to add or remove the 'Password Never Expires' attribute programmatically?

To add it, modify the `userAccountControl` attribute of the target user by performing a bitwise OR with 65536 (e.g., `$newValue = $currentValue -bor 65536`). To remove it, use a bitwise XOR with 65536 (`$newValue = $currentValue -bxor 65536`). These operations must be applied via an LDAP write (e.g., using `DirectoryEntry` in C# or `Set-ADUser` in PowerShell). The article provides reusable C# code on GitHub for this purpose, ensuring accurate manipulation during penetration tests.