[kj911]

Special question: This minimal software requirement, prerequisities have installed on freshly installed Win7 x64 machine???

Tested few compressors in pure Win7 x64 installations and get very slow compression speed's. Not installed VC++, NETFX and more...

LOLZ in get around 100-150kB/s speed and not utilize more core/threads..
Chechked in LZTurbo v1.2 its slow.
Checked Razor 1.03.7 its slooow.
Checked Nanozip 0.09 x64 its finely goodly packing via optimum1 mode utilize 8 threads and get avg. 13MB/s compression speed! optimum2 or cc mode its slow. (Tested in highly compressibble data sample, compression ratio higher than 20:1)
Tested WinRAR 5.60 x64 and packing in very goodly avg. 25MB/s speed use, Best/Solid mode and 1GB dictionary. CPU usage 30-60% percentage, probably bottlenecked via 17 years old HDD.

Installed VC++ 2012 packages taken from Catalyst 15.7.1 package and LOLZ compress its faster! Any idea?

Any members I have Xeon CPU??

My PC in has Xeon E5-2665 CPU + 16GB RAM. Will hope compression speed via 1 threads around probably really getting avg. 400-800kB/s or higher. (LDMF mode) Or higher than ~2MB/s via MTT mode and 8+ threads.