Every time I try to launch Pro Tools, I get a "ProToolsLE.exe - Entry Point Not Found. The procedure entry point_DsiSetThreadPriority@8 could not be located in the Dynamic link library DSI.dll" error message.
In order to fix the issue, uninstall the application using Pro Tools Uninstaller Utility, restart the computer and install it again using the serial number received when you purchase it. Alternatively, try to run Dll-Files Fixer. It is an application developed to solve all DLL related errors.