Download !!top!! Sidder 26 2021 File

While the original Microsoft TechNet Gallery link is no longer active, the official home for the tool is now GitHub.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, allowing for community forks and independent security audits. download sidder 26 2021

It scans your UPD storage folder and resolves every SID into a readable Domain\Username . While the original Microsoft TechNet Gallery link is

As of May 2026, remains a popular choice for system administrators who need to manage User Profile Disks (UPDs) in Remote Desktop Services (RDS) environments. Originally created by Arjan Mensch (msfreaks), this version was a milestone release because it officially became open-source. What is Sidder? It scans your UPD storage folder and resolves

Built on the .NET 4.8 framework, it is compatible with modern Windows Server versions like 2012, 2016, and 2019.

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:

For users looking for even more advanced features, there are newer community forks like SidderPlus , which adds functions for closing locked SMB files and compacting disks. Summary of Versions Sidder v2.0 Sidder v2.6 (2020/2021) Sidder v2.7+ / SidderPlus Open Source Yes Sortable Columns Fixed Advanced Tools Close locked files / Compact disks