Alex Components: TQRByDataSet & TQRDBGrid.
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mailto:zhav3@uic.nnov.ru
http://www.uic.nnov.ru/~zhav3
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How to install ?
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In Delphi 3,4,5.
1) Open package reportds.dpk.
2) Push install button.
3) Is something popup, push OK button. 
4) Enjoy it! 
5) After install don't save reportds.dpk

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P.S. If there any bugs, you can e-mail me.