Since the name is non-standard, use a tool like Malwarebytes to ensure it isn't a malicious file masquerading as a system component.
Often associated with various third-party software or older gaming applications. Simplix_sot.dll
If you found this in a temporary folder or it is causing errors at startup, it can sometimes be a remnant of "bloatware" or potentially unwanted programs (PUPs). 2. Simplix (Windows Update Tool) Since the name is non-standard, use a tool
You typically use it by loading it into WinDbg or Visual Studio . Troubleshooting Steps If you are seeing an error message for Simplix_sot.dll : Since the name is non-standard