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system.drawing not found error - ASP.NET

I just installed asp.net on a windows 2000 server. I would like to create a pie chart.  I found a sample pie chart script on the 123aspx site... here's the URL:
http://www.123aspx.com/redir.aspx?res=27396

This script seems very straightforward.  I copied the createpiechart.aspx file to c:\inetpub\wwwroot and copied the utCharting.dll file to a new "bin" folder which I created under c:\inetpub\wwwroot.  When I try to run the application, I get this error message:
File or assembly name System.Drawing, or one of its dependencies, was not found.

My understanding of ASP.NET is that system.drawing is a built in interface.  Is there some setting that needs to be set for this to take effect? Or is it possible I installed the script and/or DLL for this charting program incorrectly?

Thanks
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scottwb_98
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scottwb_98
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softomatixCommented:
You need to add reference to System.Drawing.dll assembly to your project.

Create a virtual folder under main wwwroot folder and copy aspx file there. Create a bin folder under that folder and copy the DLL there.
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softomatixCommented:
Here is a URL to a much more elaborate charting library.

http://www.pardesiservices.com/Softomatix/ASPChartNet1.asp

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scottwb_98Author Commented:
I tried creating a virtual folder under wwwroot and putting the aspx file there, and then putting the DLL in a bin folder under that virtual folder.  That did not make a difference.

How would I go about adding a reference to the system.drawing.dll assembly?  I searched my system for "system.drawing.dll" and the file was not found.  Could that be the problem?  Should it have come with the .NET framework?

Thanks
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softomatixCommented:
System.Drawing.dll does gets installed with .Net framework. Infact without this there would not be any graphics operations in .Net apps. It should be present in <windows folder>/Microsoft.Net/<framewotk version> folder.

If this file is not there then there is serious problem with your installation of .Net framework.
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scottwb_98Author Commented:
Ok I checked and the system.drawing.dll file is in that folder.  What else could be wrong?  How would I add a reference to system.drawing.dll to the project??
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hongjunCommented:
This question appears to have been abandoned. Please come back to this question and do the necessary evaluation or feedback. I will invite a Moderator to close this question if there's no reply from you after seven days.

I suggest
<delete>

** PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER **

hongjun
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