I installed SP3 on Exchange and none of the services started. Upon investigation there were a number of files missing from C:\Program Files\Microsoft\Exchange Server\Bin. notably MSExchangeADTopologyService.exe store.exe mad.exe
In ADSIEdit the serial number of Exchange is v8.1 (Build 30240.6) SP1, in the registry the build on Admin Tools
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Exchange\v8.0\AdminTools ConfiguredVersion and UnpackedVersion are both 8.3.83.6 and
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Exchange\v8.0\ClientAccessRole HubTransportRole and MailBoxRole are all ConfiguredVersion 8.1.240.6
Have read posts about editing serial numbers and registry to run setup /M:RecoverServer which currently fails because the current installed version is 8.3.83.6 and the last installed version is 8.1.240.6 so that registry entries and serial number in AD is the same.
Has anyone done this successfully? and what needs to be edited so I can recover/reapply SP3? There is no Watermark entry in the registry.
Thanks
Rachel