An error occurred creating the configuration section handler for "abc.xyz"

Hi,
I am getting following error while encrypting custom section in octopus.
could not load file or assembly ‘abc.xyz’ or one of its dependencies. The system cannot find the file specified.

Normal solution to this to be to add abc.xyz dll in to directory where aspnet_regiis is exist but as this is remote deployment I can not follow such solution.

Please help me how can I resolve this ?

Thanks,
Dipika