I downloaded IBO4_7_Beta11_Eval.zip.
I uninnstalled IBO in use,next I deleted the file which is in system32
holder
when IBO4_7_Beta1 installed,The following error message was displayed
and this IBO4_7_Beta1 was not able to be installed


there appears to be a confict with another installation of ibo
please property uninstallation and try this install action again


Is the method of installation of me wrong?