How to Remove reference from a dll file

Question

Hi,

 

 I have developed a web application here all business  logic is in a class library which has been converted into .dll file. I have added here reference of Windows.Forms.Now I am deploying it on server side which shows me error

 

Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application.

Now I want to remove  reference  of windows.forms from that  .dll Please help me as I am new to work on a project with class library.

 

You can view the error online on http://www.qtinventory.in  here login with username 'QT_MD' and Password 'quality' .

 

 

Thanks