DataFileCopy in the same folder

Dear all,

the DIAdem docu tells me about DataFileCopy():

"DIAdem specifies the name of the target file from the name of the source file. Therefore the FSTargetPath variable must not contain a filename."

Is there a more elegant way of creating a second copy of a data file with different name in the same folder than

1. create temp folder (opt.)
2. copy to temp folder
3. rename in temp folder
4. move back from temp folder
5. remove temp folder (opt.)

In fact, this limitation makes no sense to me.