PERL script to add a registry key to a C++ code

Hello Team

Could you please help me with a perl script code to add a registry entry as follows HKEY_LOCAL_MACHINE\SOFTWARE\MSP\Attributes\userattribute\ScannerProxyPlugin\ScannerType and the attribute name should be wedgemode which should be REG_SZ type in a c++ code.Also please let me know how to read this registry key value using perl script.Please also let me know how to use and run a perl script in a c++ program.Mainly the project is a WIN32 project.