WATS Client - Version: 5.1.178 (EOL)

NOTE: WATS Client 5.1 is End Of Line (EOL) Mainstream Support. Virinco recommend using the latest WATS Client version 7.X when connecting to WATS. 
Client version 5.1 may be used as offline client for legacy support. 
See:
https://support.virinco.com/hc/en-us/articles/4406570481042-How-to-setup-an-offline-WATS-Client 
https://support.virinco.com/hc/en-us/articles/20900400486172-End-of-support-EOL-for-WATS-Client-5-X 

Downloads:

WATS Client 32bit (x86)
WATS Client 64bit (x64)

Documentation:

Release Note
Installation Guide
API Reference (pdf)
API Reference (html)