TranInDlg is the template for the Transfer utility dialog, transfer-in step, which shows a Registration ID and requires the entry of License Key from the old site to complete the transfer.
Reads the License Key from a text file, and then sets it to IDC_LICKEY.
Processes the transfer-in by getting the License Key from IDC_LICKEY, checks and, if valid, puts it into the Key.
Gets the Registration ID from IDC_REGID, and then saves it to a text file.
Cancels and closes the dialog box.