try with
#include <FileConstants.au3>
FileMove("C:\Path1\VST_PlugIns\Compressor.ini", "C:\Path_Copy\VST_PlugIns", $FC_CREATEPATH)
FileMove("C:\Path1\VST_PlugIns\EQ.ini", "C:\Path_Copy\VST_PlugIns", $FC_CREATEPATH)
FileMove("C:\Path1\VST_PlugIns\Reverb.ini", "C:\Path_Copy\VST_PlugIns", $FC_CREATEPATH)
DirMove("C:\Path1\VST_PlugIns\Compressor", "C:\Path_Copy\VST_PlugIns")
DirMove("C:\Path1\VST_PlugIns\EQ", "C:\Path_Copy\VST_PlugIns")
DirMove("C:\Path1\VST_PlugIns\Reverb", "C:\Path_Copy\VST_PlugIns")
and if you have a problem, check the attributes of .dll files, maybe it's better to copy and delete?