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Planview Customer Success Center

WSAPI: wslogin.asmx fails with "Could not load type..." error under SSO with ISAPI

Symptoms:
Enterprise web site uses SSO, and Web Services API is installed under this web site.

After installing General Patch (GP) 16.00.533.000 and trying to access /CPWebService/wslogin.asmx, following error is displayed in IE:


Error/warning messages:
Could not load type
'Changepoint.CommonServices.SSO.CPSessionAuthenticationModule' from assembly 'Changepoint.CommonServices.SSO'


Reason:
GP 16.00.533.000 has two DLL files that are newer than the files coming with API: Changepoint.CommonServices.SSO.dll and
Changepoint.CommonServices.vb.dll


Resolution:
Problem can be resolved by either
1- copying the two DLL files Changepoint.CommonServices.SSO.dll and
Changepoint.CommonServices.vb.dll from ...\Enterprise\bin folder into ...\CPWebService\bin folder, or
2- installing Web Services API site under a non-SSO Enterprise web site