[diagso]

What should I double check exactly? I said everything comes from BMW servers. What is wrong with that? Of course programming data is too big to just download and forget so its saved into the respective place, but it is NOT installed with setup. Anyway I replied to BMWzone!

I have now looked into your original question, so...

I don't use AOS ISTA for flashing as that is a waste of money. But it should work to extract full package in there as ISTA uses same PSdZ engine as ESys and AFAIK AOS ISTA it does procedure similar to "check programming files availability" in ESys. Then it gets list of missing files and downloads them. All other plumbing files are installed via setup.

I would just be careful to extract SAME version of programming files otherwise it could cause license issues or wrong iStep written into car...

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P.S. The path to the data is stored in registry key HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\BMWGroupAOS\ISPI\Rheingold\BMW.Rheingold.Programming.PsdzDataPath which by default is C:\ProgramData\BMW\ISTA\ProgrammingData

Well that's kind of obvious that everything comes from servers and there's no way that 4GB msi can be decompressed to 240GB+ which is +/- current size of psdzdata. I think I kind of misunderstood you're answers in the first place, as it was not clear for me to whom you're responding.

Well sometimes there's no way around it and AOS is the way to go or customer wants it to be online update. But I want to speed up this process as it drives me crazy when I do it at customer location in the middle of nowhere. I could do esys TAL first and then jump into the AOS, but I don't want to flash ECU's twice if I don't need to. I prefer to have offline already plus ISTA pulling data that are missing.

I tried mklink to AOS programing data (only swe folder) from standalone and worked just fine for S18A car.  I believe if your are going with files in same psdzdata range f.e. 4.42.X you'll be fine. But it's only an assumption since I just did one car so far with let's called spoofed psdzdata.