The file oasyscadtoolscsmlink17.arx is a CSMLink belonging to CADtools from Oasys.  The extension arx stands for AutoCAD Runtime Extension and is used with CAD (computer aided design) software to add functions to an AutoCAD program.

An error with this file may disable some functions of your CAD program.  Fixing the problem may involve reinstalling the program, but you should start by cleaning your registry to see if that fixes the issue.

The registry is a database at the heart of the Windows operating system.  The registry keeps track of all the files that belong to programs installed on your computer and has information on how to run them.  When you start a program, Windows consults the registry.

Errors in the registry can disable your programs because Windows can’t find the right files to run.  ZookaWare PC Cleaner cleans your registry.  ZookaWare PC Cleaner hunts down errors in the registry and fixes them.  ZookaWare PC Cleaner comes with a 100% guarantee, so you can clean your registry and be confident it will run correctly when you’re done.