Oracle Instance Client Light (odac 11) and character sets

Question

Hi!

I am trying to connect to oracle db without full installation of oracle client done on the machine. I found this helpfull post Using the new ODP.Net to access Oracle from C# with simple deployment but when I try it, I am failed on the next exception:

[Oracle.DataAccess.Client.OracleException ORA-12737: Instant Client Light: unsupported server character set %s at Oracle.DataAccess.Client.OracleException.HandleErrorHelper(Int32 errCode, OracleConnection conn, IntPtr opsErrCtx, OpoSqlValCtx* pOpoSqlValCtx, Object src, String procedure, Boolean bCheck)

at Oracle.DataAccess.Client.OracleException.HandleError(Int32 errCode, OracleConnection conn, IntPtr opsErrCtx, Object src) ...

I tried to Google it up, but find nothing except "Do not use this character set" suggestions.

I occasionally I am working with NLS_LANG "american_america.US8PC437", but it can be different (client environment) character set.

Do you have any idea how can I extend light instance client with character sets resources?

Thank you!