Oracle numeric insert problem with WCF-Oracle adapter,ORA-22062

Hi

I have an issue when trying to insert a decimal value with period separator e.g 12.45 to the Oracle database using WCF-Oracle adapter, but it only accepts comma e.g 12,45. I am uncertain of all the aspects that play a part in this e.g regional settings Oracle database , Biztalk server, ODBC numeric settings etc.

The column in the database are Number. The incoming message is set to
double in the schema and the schema generated for the db insert is set
to SimpleType for the particular value in question. Any hints?

/Robert