connect to oracle xe

[cocol]

hello.
while long search and issues with connection to oracle database,i installed oracle database 10g express edition or XE,32 bits.
i have win 7 and 64bits machine.
so i tried to connect to this database after setting the ODBC driver (32 bits driver),but the problem is:
i successful connected from windows application,but failed from asp.net and i use the same code.
this is the error from asp.net:

ERROR [NA000] [Microsoft][ODBC driver for Oracle][Oracle]ORA-06413: Connection not open.
ERROR [IM006] [Microsoft][ODBC Driver Manager] Driver's SQLSetConnectAttr failed
ERROR [01000] [Microsoft][ODBC Driver Manager] The driver doesn't support the version of ODBC behavior that the application requested (see SQLSetEnvAttr).

and i tried to connect from another laptop using win 7 32 bits,it worked from asp.net and windows application.
so i don't figure where is the error,and why it worked from windows application but it didn't from asp.net.
thank you very much.

 

[cjard]

possibly the IIS youre using doesnt have file system permissions on the directory structure where the oracle client software is installed