Could not find file ‘C:WINDOWSTEMP..dll’

Sometimes customers open technical support cases because of this (apparently simple) issue: “System.Web.Services. Protocols.SoapException: Server was unable to process request. –> System.Io.FileNotFoudException: Could not find file ‘C:\WINDOWS\TEMP\hgza30lw.dll’.[…]” When you use an ASP.NET web service/client, a temporary serialization assembly is generated by it several times, in particular a serialization code is first generated and csc.exe compiler…

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