Thank is Red Sky Software's self-centering button. The *.dcu file is for the Delphi 2 trial version of the button. The *.dpk file is for the Delphi 3 trial version of the button. There is also a register program. Registered users receive source code. If you have any questions or comments, please email info@redskysoftware.com. Also, please visit our website at www.redskysoftware.com.