Issue
Unable to run ASP.Net Medium Trust in your shared hosting environment.
Symptoms
Server Error in ‘/folder’ Application.
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Security Exception
Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application’s trust level in the configuration file.
Cause
If you get above error message appears on ASP .Net Webpage, it is because our shared hosting environment has been restricted to runs at medium trust level. Users will not be able to override the ASPNET 2.0 Trust Level. As security concerned, FULL TRUST setting is not possible to be enabled for shared hosting and it is not possible to be override from client side as well.
Workaround
Please refer to the following MSDN link for further information and fine tune your script in order to make it runnable under Medium Trust Level:
http://msdn.microsoft.com/en-us/library/ms998341.aspx
You may also utilise OLEDB Connection as OCBC will not work in Medium Trust Environment, you may refer to the sample code at:
http://supportchain.com/index.php?/Knowledgebase/Article/View/137/0/asp-net-oledb
As for MySQL OLEDB Connection, you may refer to the sample code at:
http://supportchain.com/index.php?/Knowledgebase/Article/View/134/0/asp-net-oledb-for-mysql
Additional Information
If the problem still persist, kindly issue a ticket to Support Team for further information.