This compatibility fix takes a semi-colon delimited command line of filenames. At process termination, the DLL will extract ...

This compatibility fix takes a semi-colon delimited command line of filenames. At process termination, the DLL will extract each filename from the command line and make sure that the file exists in both the System directory and System32 (if it exists in either). Some older applications expect certain DLLs to be in System when under NT they belong in System32 (and vice versa).