Management of Toolbox parts can be a headache, especially if they are used in a PDM/PLM environment. There is a little known fact that may help some CAD administrators with their Toolbox file management issues. By default, any files from the Toolbox are flagged with a hidden property called “IsToolboxPart”. To make SolidWorks forget that a part is from the Toolbox, this property must be set to “No” for each individual file. SolidWorks has a small utility buried deep in its folder structure that does just that. It’s called “Set Document Property”.
To access it, run the file at this location “C:\Program Files\SolidWorks Corp\SolidWorks\Toolbox\data utilities\sldsetdocprop.exe” in most cases. Once the program is open, it’s fairly self-explanatory. Good luck!