CE 7.1 Update from SP5 to SP6

Hi,

maybe this is a stupid question, but how can I update from SP5 to SP6?

I already have a lot of files (SCA and SAR, etc...) but in the "NWCE Upgrade guide SP03 onwards.pdf" on page 9 says:

4. Windows: From the download folder, run the update tool update<ID>.exe to apply patches and

updates to your SAP NetWeaver CE system.

Where can I find that update<ID>.exe file?

Thanks in advance

Pedro