Problem in EP when executing a workbook

Hi all,

in the Enterprise Portal I get this error message:

WSATYPE_NOT_FOUND

The specified class not found

RELEASE 710

COMPONENT NI (network interface)

VERSION 39

RC -1

MODULE ninti.c

LINE 938

DETAIL NiPGetServByName: 'sapmsBAD' not found

SYSTEM CALL getaddrinfo

ERRNO 10109

ERRNO TEXT WSATYPE_NOT_FOUND: The specified class was not found.

COUNTER 3

I like to start a workbook designed in SAP BEx Analyzer from the EP... there is only the problem with workbooks; web templates and queries are working fine.

THX a lot,

Clemens