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I've downloaded MySQL 5.5.11.7 installer from http://dev.mysql.com/downloads/. When launching the installer I get the following error message:

This installation package could not be opened. Contact the application vendor to verify that this is a valid Windows Installer package.

Here's a link to the download: http://dev.mysql.com/tech-resources/articles/mysql-installer-for-windows.html?download=1.

My operating system is Windows 7.

edit

When launching the windows installer installer as suggested by one user I receive an error message that says it "is not a valid Win32 application". What to do?

/edit

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Sounds like a corrupted download. Try downloading it again. Second...it's in beta, so they might be working out some bugs and not checking their release files. –  hbdgaf May 29 '11 at 21:56
    
@aking: Thanks, but I've tried downloading it more than once. Also, I know of someone who has installed it successfully. –  snakile May 29 '11 at 22:06
    
okay so now it's not just the mysql installer, but the microsoft windows installer too? sounds like a failing hard drive or rootkit. check disk for errors, sfc /scannow, run AV on hard disk slaved into another PC. when it's not just mysql that completely changes the problem. –  hbdgaf May 30 '11 at 14:44

2 Answers 2

Try installing the latest version of Windows Installer from http://www.microsoft.com/downloads/en/details.aspx?FamilyID=889482fc-5f56-4a38-b838-de776fd4138c&DisplayLang=en

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I've downloaded it. When launching I receive an error message that says it "is not a valid Win32 application". What to do? –  snakile May 30 '11 at 8:12
    
+1 for a good suggestion. it didn't solve, but it did shed light on the REAL problem –  hbdgaf May 30 '11 at 14:47
    
Try running sfc /scannow in an elevated command prompt. –  Zian Choy May 30 '11 at 22:35
    
Could you please explain yourself in more details? I have no idea what you've said. –  snakile May 31 '11 at 13:06
    
You may have some corrupt system files. Running the System File Checker may resolve the problem. –  Zian Choy Jun 1 '11 at 0:11

I've seen that message before.

Chances are very good that the downloaded file became corrupted. Remove it from your system and re-download it again.

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