"SOAPAction HTTP header missing" Error After insta


We are invoking Salesforce API’s through Web Method.
But when we invoke login service it gives us error
“SOAPAction HTTP header missing”.

I remember previously it was working fine. But After installing Patch IS_7.1.2_WebSvcsXML_Fix19 and ID_7.1.2_Fix10.zip it started giving this error.
Is there anybody who can help me to solve this issue?

Thanks & Regards,

Are you still having this problem?
You might want to install 7.1 SP3 and see whether the problem persists. If it does, then please post the WSDL here.

Jonathan Heywood
Software AG Product Management