I'm doing this in my code (c#):

iDisposition = objCertRequest. Submit(
(int)eSubmitFla g,
csr,
sAttributes,
serverAddress);

Where eSubmitFlag = 256, csr="something"
sAttribute="Cer tificateTemplat e: mytemplate" and serveur="W15780 100LADS2\AC CNAM SERVICES G2"....