execute process task using winrar arguments

Hi All,

i need to convert some backup files into zip.i have winrar software.i created 3 variables

for path-[@directory] in that i given- E:\Mahesh

for fetching files-[@filename]-no value

for zip folder-[@zipped]-in that i given test.rar

in for each i given the path as E:\Mahesh

so i created expression like "a"+"\""+@[user::directory]+@[user::zipped]+"\""+" "+"\""+@[user::directory]+@[user::filename]+"\""

if i run the package it is showing green colour but its not zipping the backup files.

any one can helpme

Thanks in Advance