1. A method in a computer system for preparing and transferring configuration settings from a source computing system to a target computing system, the method comprising: providing information about configuration settings on the source computing system, the information including a location of each configuration setting; generating an extraction plan that identifies configuration settings to be extracted from the source computing system, the generating including providing a list of configuration settings known to the source computing system and including identifying active configuration settings out of the provided list of configuration settings to be extracted from the source computing system; extracting the active configuration settings of the extraction plan from the source computing system, the extracted configuration settings being located using the provided information; generating a transition plan that identifies configuration settings to be transferred from the source computing system to the target computing system, the generating including providing active configuration settings of the extraction plan and including identifying from the active configuration settings of the extraction plan active configuration settings to be transferred from the source computing system to the target computing system; and for each active configuration setting of the transition plan, retrieving the extracted configuration settings identified as active configuration settings of the transition plan; and transferring one or more of the retrieved configuration settings from the source computing system to the target computing system.