MSCRM 4.0 - Message Error "The Path is not of a Legal Form"

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“The Path is not of a Legal Form” while installing the Dynamics CRM Data Migration Manager Setup or outlook client"

While I was installing the Microsoft Dynamics CRM Data Migration Manager Setup I come across to received an error message saying " The Path is not of a Legal Form" As I select the install directory

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However, the specified folder was “C:\Program Files\Microsoft Dynamics CRM Data Migration Manager” and it was present on the C drive. It may be occur due to following reasons Windows update, Update Rollup for Microsoft Dynamics CRM 4.0. The solution for this reason is to update manually the registry.

Go to : run\regedit

Key:[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\59DD8CB00184F24E99A62CF4D6109FA\InstallProperties]

Name : InstallLocation

Set the Data value to “C:\Program Files\Microsoft Dynamics CRM”

This was empty on installation Now after this minor modification, setup will continued without an error