New File, New SOLIDWORKS Session...Why?

Article by Erick Vega on Apr 02, 2017

Why is SOLIDWORKS opening a new session every time I launch a part from Windows Explorer? Well, there is this thing called SOLIDWORKS Launcher, you may have seen the name lurking somewhere around in your computer. This program is what decides which version of SOLIDWORKS to launch when a file is open. Usually, accidentally, SOLIDWORKS files get associated to be launched by SOLIDWORKS itself, not the SOLIDWORKS Launcher. This would make opening a file from a Windows Explorer folder the equivalent to launching the SOLIDWORKS icon every time you open a part.

To reset the file association, go to Tools > Options > General> Click Restore File Associations


Now to restore the file association to SOLIDWORKS Launcher you can go to any SOLIDWORKS part file Right-Click > Open with > Choose default program.

SOLIDWORKS File Association Tutorial

In the new window select the SOLIDWORKS Launcher application and make sure you select the checkbox for Always use the selected program to open this kind of file.

SOLIDWORKS Launcher New File, New Session Help

Click Ok and now all .sldprt files launched from a Windows folder will open in the currently active session of SOLIDWORKS.

This process has to be done for .sldasm and .slddrw files as well to reassociate every SOLIDWORKS file type.

More SOLIDWORKS Tutorials

SOLIDWORKS Convert Entities Quick Tips

Easily Save SOLIDWORKS Configurations as Separate Parts

Linking a Custom Cut List Property to a SOLIDWORKS Drawing Balloon

SOLIDWORKS Warning: A Journal File Could Not Be Created

How to Download SOLIDWORKS Block Libraries


About Erick Vega

Erick has a B.S. in Mechanical Engineering and 6 has years of Microcontroller Automation experience. You can find him venturing out climbing into the Wasatch mountains, tinkering around with salvaged electronics or trying to program a Windows application that probably didn’t need to exist.

View all posts by Erick Vega