Del,

Thank you. For my purposes you suggestion seems to work. In case you are curious, my purposes are to modify the structure of an FPDos file that has a CP of zero while leaving it with a CP of zero. This is necesary because a field contains encrypted data, so changing CP would mess things up. Thank you.

Alex

>>>to avoid calling cpzero unnecesarily, and at the same time avoid the dialog appearing to user.
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>You can prevent the dialog with
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>SET CPDIALOG OFF
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>Del