SAP Net Connector and CodePage

I am using SAP .Net Connector (now it is 2.0) to get data from SAP into VB.Net and put them from VB into SAP. I got the problem:

the Russian texts are not transported correctly.

Though I set dest.Language = "RU", forming ConnectionString, the Russian string that look correctly in SAP have strange appearance in .Net and vice versa.

It seems that the Connector uses incorrect Code Page for Russian language.

When I debugged the code, I saw that

SAPProxy.Connection.OwnCodepage = "1500"

and

SAPProxy.Connection.PartnerCodepage = "1500"

May be, they should be equal to 1504?

Could anybody help me?

BTW, the same problem was with version 1.0 of SAP .Net Connector, but was not with SAP Connector and VB6.