swi_cdma1x.dll is a CDMA2000 1x API
belonging to Sierra Wireless CDMA2000 1X API
from Sierra Wireless, Inc.
Non-system processes like swi_cdma1x.dll originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues.