Message ID: 1518 (Your operating system does not support the 64-bit version of Silverlight.)


  • I have windows XP x64 with firefox ver11 and explorer 9, The latest silverlight update (ver6) gives the above message, which is false seeing as how I own a 64bit operating system with service pack2 (the latest update for X64) and previous versions of silverlight installed itself by default in the X86 program files directory. I attempted reinstalling version5 (64vit version with the same message). Version5 32bit installs, however Silverlight does not run in netflix. Please fix this problem ASAP! I have been unable to watch netflix for a week nearly. I also have a high tech level so don't give me the runaround; I am about ready to write my own DRM freeware.

    • Moved by mbanavige Saturday, March 31, 2012 8:31 PM Migration data
    Friday, March 30, 2012 2:25 AM


All replies

  • Hi meeks32321,

    Silverlight 64-bit only supports in IE9 of Windows 7 sp1 and it doesn't support in windows xp sp2.

    So i suggest you unintall previous 64-bit silverlight plug-in and install the latest 32-bit version of silverlight from below link


    Best Regards,

    Monday, April 02, 2012 2:52 AM
  • I am using firefox version11, I was simply stating it also does not work in explorer ver9. The link you provided gives me a file install that is 12.4MB in size named Silverlight_X64.exe which is the 64bit version 5.0.61118.0 and does not install! Which states: Message ID: 1518 (Your operating system does not support the 64-bit version of Silverlight.) after the failed install.

    The 32bit version of Silverlight 5 installs from this link:

    As stated, the 32bit version installs but does not start in netflix.

    I have attempting running firefox in compatibility mode for other versions of windows with no luck. I continue to get the message:

    To watch instantly, you''ll need a computer that meets the following minimum requirements:

    • Windows
      • Windows XP with Service Pack 2, Vista or Windows 7
      • Internet Explorer 6.0 or higher; or Firefox 3 or higher; or Chrome 7 or higher
      • 1.2 GHz processor
      • 512 MB RAM
    • Mac
      • An Intel-based Mac with OS 10.4.11 or later
      • Safari 3 or higher; or Firefox 3 or higher; or Chrome 10 or higher
      • 1 GB RAM
    • Chrome OS
      • A Google Chromebook with Chrome OS 13 or higher

        I exceed all of the windows requirements. The issue is silverlight is not running.

    Tuesday, April 03, 2012 8:52 PM
  • Hi meeks32321,

    After installing silverlight 5 32-bit, could you try below link and check if silverlight content can be displayed properly?

    This will help to isolate the cause of silverlight installation and Netflix website.


    Best Regards,

    Tuesday, April 03, 2012 9:19 PM

    I recieved the following error above while attempting to install the toolkit

    Tuesday, April 03, 2012 11:10 PM
  • Hi meeks32321,

    I recieved the following error above while attempting to install the toolkit

    No need to install toolkit, it is only for silverlight development. I just want to check if other silverlight page can displays well on your side.

    Seems you can open the Silverlight toolkit page successfully. So silverlight is installed properly and I suspect that this issue relates to netflix website itself.

    I suggest you contact support of netflix and I believe they will give you more valuable suggestions of this issue.


    Best Regards,

    Tuesday, April 03, 2012 11:32 PM
  • I have done that, they point at Silverlight, and Silverlight points the finger at Netflix. Since the netflix website works fine but silverlight never opens as a process there is something profoundly wrong with silverlight's latest update on the server side of netflix(which is provided by Microsoft). The silverlight software installed on Netflix servers for what ever reason recognizes my computer as incompatible. I can guess it be a ploy to convince me to upgrade to windows 7. I have read countless forums containing the same complaints of 64bit Vista users and other Xp 64bit users (no issues with windows7, no suprise there). I am not new to programming or troubleshooting. The issue lies within Silverlight. If a solution continues to be neglected I will have all the evidence I need and Microsoft will be hearing from my lawyers for costing me time and money on the matter.

    The fact that there was an error with installing the toolkit also points to Silverlight. I understand it is for developers, but what if I wanted to develop using silverlights rights management system? I am kidding, I would rather create my own software for linux than be forced to use any more microsoft software. It is bad enough I have to duel boot to watch netflix or to play a veriety of games that only work on Windows due to the Monopoly giant.

    Microsoft better soon adopt Googles business model or they are going to surely perish. The fact that Mac has gained so much ground over PC (despite the extreme cost) is a clear indication that people are fed up. I will NEVER buy another microsoft product or anything with the name in partnership, you have my word.

    Thank you kindly for your help, I know it is not your fault. Perhaps you can search that place you work for someone who can solve this though. Start with the error for the toolkit installation please.

    Wednesday, April 04, 2012 2:59 AM
  • Using XP x64 SP2, IE8 (32-bit), SL5 (32-bit), I was able to view Netflix content.


    Please try the following steps to repair your Silverlight instalation

    Steps to clean up a machine to
    fix a broken Silverlight installation:

    1. Copy these instructions to Notepad, Microsoft Word or some other text editor because you will be asked to close all browsers.
    2. Download and run Microsoft Fix it solution 50747using teh following link
    3. Follow the instructions of Microsoft Fix it 50747
    4. Visit and re-install Silverlight
    Thursday, April 05, 2012 7:26 PM
  • Hmm I have IE ver9 and it doesn't work, I will try ver8. Have you been able to get firefox to work, that is what I have always used with netflix until the latest update? I loathe explorer...

    1. Microsoft fixit fails to install giving the following excuse: "This Microsoft Fix it does not apply to your operating system or application version."

    2. I went to the following website instead: to find nothing relating to silverlight.

    3. I have already reinstalled the software multiple times including different versions.

    4. The issue lies within the code of silverlight having some sort of hardware/software conflict.

    5. This problem did not exist until after the Silverlight update!

    6. There is no working silverlight for my computer!

    7, The easiest solution is to undo the update on microsofts end and rework the problem.

    Thursday, April 05, 2012 8:27 PM
  • Firefox 11 didn't work for me.  Netflix's Minimum Requirements page Page was shown.


    I'm not sure why that is.  Perhaps there is a known issue with FF11 and Netflix blocks it intentionally, or maybe their code that detects the user agent isn't detecting FF11 correctly, though I'd expect they'd be using Silvelright.js for that.

    This should be reported to Netflix.


    If you want to use FF11, you could try changing the User Agent as discussed in...

    Thursday, April 05, 2012 9:37 PM
  • ah hah, It is silverlight that isn't compatible with firefox11... it is silly that it is also not compatible with IE9 also... since that is at least a microsoft product. Finally the solution to the problem is Silverlight is not compatible with ff11. Thank you much. I hate updates... they always screw stuff up and slow things down. I thought i turned off firefox update.

    Friday, April 06, 2012 1:53 AM
  • I tried this and it still won't install the program. I guess I'll try the 32bit install.
    Monday, November 03, 2014 2:54 AM