MDX parser connection error

Hi experts,

I m getting some errors when I test the MDX parser on the BW system (7.01):

I have look for this error in the internet, and I found in the SAP Note 1032461 that's all about the file librfc.dll!

I look for this file in the system and I have found it "librfcu.dll"

I have two questions, and I really appreciate you answer them:

1-Our system is on the 7.01 version and on the SAP Marketeplace I have found only 7.20 or above. is the librfc is system independent?

2-Our system is unicode, and on the SAP Note 1032461, they have mentionned that it should download the file without the "U", should I have to download the file for non unicode systems knowing that our system is unicode?

Thank you a lot for your help.

Abdess