VB6 winsock connection to Domino 6.5.1 Server

I have a VB6 Programm with a winsock connect to run a Agent on a Domino Server.

I open a connect with winsock.connect dominoserver , httpport

then i send a string winsock1.senddata GET /bsv/bsv.nsf/(bsv)?openagent&client=cpr1231c

The result of the Agent is getting with winsock1.getdata

This is going with Server Domino 4.5 and Domino 5.0.10 . Now i Update my Server 5.0.10 to 6.5.1 and the Programm gets no Data.

Whats wrong in 6.5.1 ??

Please Help!!!

Subject: VB6 winsock connection to Domino 6.5.1 Server

at a guess - authentication?

Subject: RE: VB6 winsock connection to Domino 6.5.1 Server

No authetification.

On this Database has Anonymous Manager Access.