I was using cls-srep (it's srep 3.93a) and xtool 0.9. This srep was working with ztool.
For decompression I'm using this, not the one above...: unpackcmd = xtool.exe d

recomp:t4 - - <stdin> <stdout>
@Ahmad: the installer is not even giving a crc error. It's just stuck. I have the same problem with the whole folder compressed. srep64 and xtool are still in the working processes.
Maybe I'm going to try with smaller files. In both cases it's stuck with the biggest file (imagefile92.pak).
Tested with a smaller file (25mb)...decompression worked.
my scenario for the s&p 500: a big fall. Sell everything.