On Tue, May 9, 2017 at 9:10 PM, <Mario.Limonciello@xxxxxxxx> wrote: >> > > Then took relevant decompression code and it really decompressed that >> > > binary MOF WMI buffer. But still decompressed format is binary, but I >> > > now see all WMI GUID encoded in UTF-16. Decompressed BMF file has again >> > > "FOMB" magic header. >> > >> > Well that's great. Is it possible that this compression is used for every time >> > a class was declared? >> >> Looks like not. That decompressed output seems to be not compressed >> anymore. Just use same magic header. > Actually it looks like a new magic header to me after decompressed. > > 46 4f 4d 42 54 15 00 00 01 00 00 00 01 00 00 00 > That's now FOMBT I think you just mistakenly take 0x54 as letter when it looks more like 0x00001554 0x00000001 0x00000001 from the above dump. -- With Best Regards, Andy Shevchenko