filetransfer error from vsphere web client to the datastore

Dear All

I had a problem while uploading an iso file from vCenter Server using vsphere web client . I installed the vmware clientntergration plugin for uploading files from the web browser to the datastore and still i get the error "filetransfer.exe has stopped working" on both Internet Explorer and Mozilla Firefox browsers.  I could successfullly transfer the iso file from vsphere client connecting directly to the ESX server . Did anyone face this issue before .

Thanks

Mohammed Sadiq