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I downloaded mysql-5.5.13-win32.msi from SQL server site. When I try to execute that file, it gives an error saying, "this installation package could not be opened. contact the application vendor to verify this is a valid windows installer package."

I have read couple of posts talking about corrupted package and Windows Installer might not be installed properly. Should I download again from zip file or so? Or should I try to download the MSI file itself one more time? Is there any other work around for this?

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Check to make sure that you are using a 32-bit OS, and if so, download it again. It sounds like it may be corrupt or the wrong version.

Lastly, it could be a corrupt file in this directory: Windows\Installer folder. Delete any files with an .msi extension (You may need to enable viewing the extensions).

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how to check whether it is 32 bit or not? windows xp with SP2. – vani Jun 21 '11 at 17:48
@vani Do Start>Run and type in winver and hit enter. If it is 64-bit, it will say x64 clearly, but if it is 32-bit, it will say nothing. Here is what the 64-bit looks like: – KCotreau Jun 21 '11 at 18:07
thank you Kcorreau, Should i delete windows installer and then install again from microsoft site? – vani Jun 21 '11 at 23:09
Yes, I would delete the download, and re-download it. It may be something else, but it could simply be corrupt, so rule out the easy thing first. – KCotreau Jun 21 '11 at 23:32
it is 32 bit, i think there is some problem in file download, size is nto the same as mentioned in my SQL website. downloading again. – vani Jun 22 '11 at 17:28

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