>How do you remove and add report to the project file Programmability ?
>
>thank you all

You have to use a Project object to do that. See sample code below (not tested)

* To add a file (report) to the current project

Application.ActiveProject.Files.Add('Myreport.frx')

* To remove a file (report) from the current project

FOR nCount = 1 TO nFileCount
   IF Juststem(Upper(Application.ActiveProject.Files.Item(nCount).Name))= "MYREPORT"
        Application.ActiveProject.Files.Item(nCount).Remove()
   ENDIF
ENDFOR

* Or

FOR Each oFile in Application.ActiveProject.Files
   IF Juststem(Upper(oFile.Name))= "MYREPORT"
        oFile.Remove()
   ENDIF
ENDFOR