dont use toad 10.5 on oracle 11gr2 64 bit problems

Toad for Oracle
1

system: win7 64 bit ultimate
database: oracle 11gr2 64 bit

i installed toad 10.5 , but i cant use it with this system and database.
it has errors.

1-)no oracle client installed
2-)no oracle_home

how can i solve this problem?
does anyone use toad 10.5 on this system and database.

thank you for your helps.

2

I believe you must install the 32 bit Oracle client inorder for it to work correctlt.