DeleteEncryptedInformation Method (WMI MSReportServer_ConfigurationSetting)
Deletes the encrypted information from the report server database.
When this method is invoked, the following data is deleted:
Data source information that is encrypted, including user name and password.
Subscription data that is encrypted using the delivery extension interfaces.
All the information from the keys table in the report server database.
After this method is invoked, the user must initialize each computer that uses the report server database.
Calling the DeleteEncryptedInformation method does not affect the report server configuration file.