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C# Why can't I print a chart from a windows service using NetworkService account?

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+2 A:

You probably needed access granted for System.Drawing.Printing.PrintingPermission. Reading the documentation, you find the following:

Classes within the System.Drawing.Printing namespace are not supported for use within a Windows service or ASP.NET application or service. Attempting to use these classes from within one of these application types may produce unexpected problems, such as diminished service performance and run-time exceptions.

RichardOD 2010-01-03 18:25:51

Yeah the weird thing is it doesn't throw an exception it just ignores the call, which would come under *unexpected problems*. How would I grant access to the PrintingPermission class? Do I just give NetworkService access to the specific folder the assembly is in?

James 2010-01-03 18:31:22

It's odd that you don't get an error with printing.

RichardOD 2010-01-03 18:39:49

@James- have you also considered creating a low privilidge service account to run the code under?

RichardOD 2010-01-03 18:44:55

@Richard just tried it out there, created a new user with the basic User template permissions. Didn't work. There must be a permission somewhere in an admin account that the NetworkService/Basic is missing. Again no exception under minimal account.

James 2010-01-03 19:07:11

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C# Why can't I print a chart from a windows service using NetworkService account?

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