We can Installtion SAP Web Dispatcher using software provisioning manager
SAP Web Dispatcher Version 7.20.0
Software Provisioning Manager 1.0 SP2 for NW 7.0x
Software Provisioning Manager 1.0 SP3 for NW 7.0x
If you wish to installed the SAP Web Dispatcher 7.40 then you can use
Software Provisioning Manager1.0 SP3 for NW higher than 7.0x
Below are the combination of SAP release and Web Dispatcher
Release of Version of
SAP system SAP Web Dispatcher
6.20 7.00 - 7.20
6.40 7.00 - 7.20
7.00 7.00 - 7.20
7.01 7.01 - 7.20
7.02 7.20
7.10 7.10 - 7.20
7.11 7.11 - 7.20
7.20 7.20
7.30 7.20
7.31 7.20
7.40 7.40
For more information below note
908097 SAP Web Dispatcher: Released releases and applying patches
1336825 SAP Web Dispatcher 7.11: Patch history
870127 Security note for SAP Web Dispatcher
Please find screen shot for 7.20 WD installation.
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Best Regards,
Atul