Jeff thanks for reply....
no any error get.Since the web sites created consists virtual directory that some with asp files and some virtual directory with aspx files, so suspect that the different version of ASP with ASP.net causes the problem. The framework having is version 2 so I installed another version 1 to it then create Application Pool to separate the two version into different application pool. now it seem solves the major issues on some asp virtual directory....but still need further investigation to confirm.
But what is sure now is, still has one of the virtual directory still having the same issue. Plus if i include the virtual directory in version 1 application pool, it would causes other version 1 web page unable to load too. so now still finding why this virtual directory (with asp file inside) did not work well in version 1 pool.
i discovered that all other asp files in this virtual directory are set to version 1 as the whole folder is set to version 1.Only got 1 asp file in this virtual directory is set version 2 in ASP.NET tab. I cannot change it version since it has been disabled.
Any idea? or did you understand what i explained? thanks for any help given...