i use the library which version is 1.1.5302.0 . when i compiled the samples use delphi 7, i got some errors.
i find that when delphi compiled at "xCompressor.CompressionFormat := xBZip2;", a error occured.
the error is "cannot assign to a read-only property".

how can i do it .

thanks.

i know it, i should read the whole document before i used the control, the answer is already given me.