An error occurred updating the password file
Resolution: Web Deploy 2.0 setup does not create a delegation rule for this provider. Diagnosis: This error code can surface if connecting over the Web Management Service as a non-administrator: Diagnosis: The Run As identity specified for the create App delegation rule needs Write access to the IIS server's application Host.config file.Resolution: Grant the Run As identity of the create App delegation rule Write access to the IIS server's application Host.config file.Diagnosis: This error code can surface because of a number of different reasons.
A client may or may not display error messages received from the server.
It is possible that a delegation rule required for this provider has not been setup correctly.
Workaround: From the Programs Control Panel, run Repair on Web Deploy 2.0.
Resolution: The Remote Agent Service accepts either built-in Administrator or Domain Administrator credentials.
If you have a non-domain setup and want to use account other that built-in administrator, please do following: Diagnosis: The certificate presented by the Web Deploy endpoint is untrusted or invalid.