check the note
908097 - SAP Web Dispatcher: Release, Installation, Patches, Documentation
path::
The latest patches are provided on the SAP Software Download Center athttps://service.sap.com/swdc-> Support Packages and Patches-> Browse our Download Catalog-> SAP Technology Components-> SAP Web Dispatcher-> < Release >-> <Operating system platform>
consider below things
Which SAP Web Dispatcher version to use for updating:
- If you have installed a SAP Web Dispatcher with any 7.2x version, update it using the latest 7.20 SAP Web Dispatcher from SAP Software Download Center.
- If you have installed a SAP Web Dispatcher with any 7.4x version, update it using the latest 7.41 SAP Web Dispatcher from SAP Software Download Center.
- The SAP Software Download Center currently provides only ASCII version of SAP Web Dispatcher. Use these even if the installed SAP Web Dispatcher is a Unicode version