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Using a dynamic variable assignment from a registry entry is recognized by using the attribute regkey in the variable definition.

Specific attributes:

• keyregkey
  The registry entry root key to find the registry value to read from.value
• regvalue
  The registry value to read from, which is in Microsoft terms equivalent to a key in ordinary INI files.

Example:

<dynamicvariables>
    <variable name="RegistryReadTest" checkonce="true"
              regkey="HKLM\\SYSTEM\\CurrentControlSet\\Control\\Session Manager\\Environment"
              regvalue="Path"/>
</dynamicvariables>

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