Problem with RfcRecieve call on Unicode SAP RFC SDK

Hi All,

I am facing problem while calling RfcReceive with unicode sap support, While I call RfcRecieve the call times out. Although the same call is working for the NON Unicode SAP. Does anyone have ever faced this problem earlier for SAP with Unicode support, I am currently using the following SAP Unicode patch version

SAP_BASIS 620 ---> level 0044

SAP_ABA 620 ---> level 0044

SAP_APPL 470 ---> level 0021

SAP_HR 470 --> level 0033

regards,

Amit