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  • Len Dierickx 150 posts 92 karma points
    Oct 03, 2012 @ 14:19
    Len Dierickx

    ImageGen Pro not working due to permission problems on IIS7.5

    I have an ImageGen installation with a key for the domain name, but since we moved the website to IIS7.5 on a Windows 2008 R2 server, it is no longer working. 
    We also upgraded to Umbraco 4.7, but I doubt that that has anything to do with this issue. 

    The basic version works, but not the professional vesion. 

    My version: 

    ImageGen version
    (professional features enabled for localhost)


    The website is running under the ApplicationPoolIdentity and all the normal permissions have been applied.

    ~/config > read
    ~/data   > modify
    ~/media  > modify

    This should be sufficient for ImageGen to find the config file, and generate the cache directory, but it doesn't.

    I tried adding permissions for NETWORK SERVICE, I even tried giving access to Everyone, but nothing seems to work. ImageGen is not generating the /data/Cached folder. 

    It looks very similar to this problem:

    Does anyone know which specific permission settings ImageGen requires to work?

    Or did anyone experience this before and solved it?

  • Douglas Robar 3570 posts 4711 karma points MVP ∞ admin c-trib
    Oct 03, 2012 @ 14:50
    Douglas Robar

    Hi, Len,

    I don't have any problems with Win2008R2 so I don't think it's a general problem.

    When you say the basic version works, but the pro version doesn't... what do you mean? What works and what doesn't? Is it simply that you don't have the Pro features enabled? If so, double-check you have the correct entries in the web.config file to load the /config/imagegen.config file.

    You won't get a /data/cached folder unless you request a text-only image (imagegen.ashx?text=hello). And in newer versions of ImageGen it will be stored in the /app_data folder instead of the custom /data folder. It would be helpful to update to a newer version of ImageGen.


  • Len Dierickx 150 posts 92 karma points
    Oct 04, 2012 @ 16:13
    Len Dierickx

    Hi Douglas, 

    I found the problem, a web.config misconfiguration. 

    The permissions seemed to be most obvious, but I was wrong. 


    Thx for the reply,



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