Press Win + R, type eventvwr.msc, go to Windows Logs → Application. Look for an Error event with source "SolidWorks" or "Application Error" at the exact time of the crash. The faulting module name (e.g., sw.dll, MSVCR100.dll) provides critical clues.
Open Control Panel → Programs → Turn Windows features on or off. Check .NET Framework 3.5 (includes .NET 2.0 and 3.0). Click OK. Windows will download necessary files from Windows Update.
If the problem is related to a specific add-in or API (Application Programming Interface) interaction, you might need to adjust how your scripts or add-ins interact with SolidWorks. For instance, ensuring that .NET frameworks or relevant libraries are correctly installed and referenced is crucial.
// Simple C# example to ensure a library is loaded
using SolidWorks.Interop.swconst;
using SolidWorks.Interop.SldWorks;
public void LoadLibrary()
SldWorks swApp = new SldWorks();
if (swApp != null)
// Set library path
string libraryPath = @"C:\Path\To\Library";
swApp.SetUserPreference(SldWorks.eUserPreference_eLibraryPath, libraryPath);
else
Console.WriteLine("Could not connect to SolidWorks.");
If a specific library is named in the error (e.g., swloadersw.dll), you can manually fix its registration: error cannot initialize library solidworks 2012
regsvr32 /u "C:\Program Files\SolidWorks Corp\SolidWorks\swloadersw.dll"
regsvr32 "C:\Program Files\SolidWorks Corp\SolidWorks\swloadersw.dll"
Also check that PATH environment variable includes:
C:\Program Files\SolidWorks Corp\SolidWorks and C:\Windows\System32
Corrupted user profile can cause this. Test with a fresh local admin account.
Install the runtimes in this sequence: 2005 (x86 first, then x64 if on 64-bit Windows), then 2008, then 2010. Reboot after each installation if prompted. Press Win + R , type eventvwr
Title: Troubleshooting the "Cannot Initialize Library" Error in SOLIDWORKS 2012
Introduction Few things are as frustrating as being ready to design, only to be stopped dead in your tracks by a cryptic error message. For users of SOLIDWORKS 2012, a common legacy issue arises upon startup: "Error: Cannot initialize library."
This error typically indicates that the SOLIDWORKS installation is unable to locate or access critical system files required to launch the application. Since SOLIDWORKS 2012 is an older version, this issue often stems from conflicts with newer operating systems, corrupted registry entries, or failed updates. If a specific library is named in the error (e
In this article, we will guide you through the most effective methods to resolve this error and get your software running again.
If the steps above fail, the installation core files are likely corrupt.