This is the error I get ....

===plusrar version===
4.1
===php_uname===
Linux 2.6.18-274.7.1.el5.028stab095.1 #1 SMP Mon Oct 24 20:49:24 MSD 2011 i686
===safe_mode===
off
===rar executable info===
unrar 3.80 for Linux with permissions 0777
===Return code===
-1
===Error===
Error*openning*rar*process
===Executed command===
'/***/rar/unrar' v -v -c- -x*.htaccess -x*.htpasswd -x*.php -x*.php3 -x*.php4 -x*.php5 -x*.phtml -x*.asp -x*.aspx -x*.cgi -- '/***/files/Ch44.BRRip.x264_RippeR_Sample.rar'