Hpasp, could you consider releasing minor fixes (SAMSIM versions with 3-digit extension) as separate packages, maybe several files to copy manually to the sim directory? Although my computer has no problem with playing performance, by some reason it takes me some 45 min. to install the sim - files are being copied very slowly.

No, but here is the (quick and dirty) unofficial way...
... unpack the SAM.CAB with WinRAR, than put all files with extension *.dat into a subdirectory called "data".
(shouldn't take more than a few second)