Unable to parse php_ini

I have managed dedicated hosting, but trying to install cscart throws a unable to parse php_ini error and no text or images will load…install page is mostly blank. They say its a severe security risk and want me to sign off on the risk or find a workaound. What' is the harm with this being enabled. Is there a work around for this so that I can install this, why does CS cart need this enabled.? Thanks in advance.