The source code was released to the public, allowing for community forks and independent security audits.
It scans your UPD storage folder and resolves every SID into a readable Domain\Username . download sidder 26 2021
While the original Microsoft TechNet Gallery link is no longer active, the official home for the tool is now GitHub. You can find the original project and its various community-supported updates on the msfreaks Sidder GitHub repository . The source code was released to the public,
Sidder is a lightweight, portable utility designed to bridge the gap between abstract filenames and actual users. In RDS environments, User Profile Disks are saved with names based on a user's Security Identifier (SID), such as UVHD-S-1-5-21-....vhdx . Identifying which disk belongs to which person is difficult without a manual lookup. Sidder automates this by: You can find the original project and its
Critical bugs in the "Size" and "Last Change" columns were fixed to ensure they sorted data correctly.
Built on the .NET 4.8 framework, it is compatible with modern Windows Server versions like 2012, 2016, and 2019.