Download of ST-Links SpatialKit 4.0.0 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The following versions: 4.0 and 3.0 are the most frequently downloaded ones by the program users.
We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. The program lies within Photo & Graphics Tools, more precisely 3D Design. The actual developer of the software is ST-Links Corporation. You can run this PC program on Windows XP/Vista/7/8/10/11 32-bit.
From the developer:
ST-Links SpatialKit is an ArcMap Extension for directly connecting to spatial databases. The program works with Postgresql / PostGIS, SQL Server 2008 / 2008 R2 spatial databases. You can edit database spatial tables / views within ArcMap Editing Session, align spatial reference identity codes with ArcMap spatial references and it supports customized coordinate systems.
You may want to check out more software, such as ST-Links QMap, which might be similar to ST-Links SpatialKit.