unable to install some programs installation package could not be opened error?

Question

hi.when i try to install some programs i get this error message verify that the package exists and that you can access it or contact the application vendor to verify that this is a valid windows installer package. very annoying. i have tried to download the latest win installer from microsoft but when i run it i get the same message.
any help please

Answer 1

Is this solution to your problem?:



http://training.eset.com/kb/index.php?option=com_kb&Itemid=29&page=articles&articleid=561



It worked with me! :) But i am not sure is this same problem what you have...

Answer 2

"when i try to install some programs"



If you name them, we can try to figure out the problem. Without the Full name, including the file extension, and Windows version, we can only guess...



Please re-post with the missing CRITICAL info and maybe we can help.

Answer 3

Your answer by utilising way of 'reproduction - previous' xP "Compressed .ZIP or executable .EXE checklist renamed by utilising way of CA protection Centre to have a ".efw" extension; in many circumstances applies to digital mail attachments scanned by utilising way of workstation friends (CA) antivirus utility. EFW zipped data would be opened by utilising way of adjusting the checklist extension to ".zip" and putting out the checklist with a decompression utility, alongside with WinZip or Stuffit Expander; executable data would be run on the instant by utilising way of adjusting the checklist extension to ".exe" and putting out the checklist. observe: do now no longer open unknown digital mail attachments from non-depended on supplies, as they'd incorporate viruses or diverse malicious classes. you would be able to stay away from EFW data from being created by utilising way of quickly disabling your antivirus utility together as downloading valid zipped or executable data."