KiNG or someone else might come in & help but in the meantime have you tried going through the other threads in this section to see if there are already solutions to this issue? I know it's a fairly common one with regard to any downloaded archive files.
Also I just did a quick search & I could only find "Company.Of.Heroes.Complete.Edition-KaOs" (without the "REPACK" part in it as it's from 2014 before that naming was used). Is that the release you have? If you have downloaded one with a slightly different name from a different source that could be a possible problem.
Here's a few more ideas -
1. Are you sure the archives are not corrupted? Try downloading again from different links although no guarantee the files are not corrupted at the provider end due to age, etc.
2. If you got it via torrent try rehashing to see if there was a problem. If there was it should redownload the affected parts.
3. You only have 2GB RAM. While that may be enough to barely run the game it may not be enough to properly unpack/install it. 2GB is really way below minimum by today's standards!
4. Try running it on a different computer with different OS (or Win 7 64bit seeing as yours is 32bit) & more RAM/drive space, etc to see if you get the same issue.
5. Empty recycle bin & clean out all temp folders including %TEMP
6. Make sure to run the process as Admin especially if running it or installing to C:/ drive.
7. You could try upping your Virtual RAM - set the upper & lower limits at 4GB (4096MB) rather than system managed.
8. FitGirl has a Troubleshooting Guide
HERE that covers most of all this more.
If I had to take a complete stab in the dark I'd say the biggest problem is your tiny amount of RAM but also the downloaded rars might be corrupt. Also being on 32bit may be an issue with the unpacking process (even though the game itself might run on 32bit).
