Roman,
if you want to set different cache paths for individual Creo installations, I suggest you to add the following line at the end of psf file (default one is parametric.psf located in ...\Parameteri\bin directory).
ENV=PTC_WF_ROOT=C:\PTC\CACHE_version_name
This line sets specific value of PTC_WF_ROOT variable for specific Creo installation.
You have to create target directories manually and set appropriate permissions.
Martin Hanak