Print pdf to printer from Web Service

[RobFra]

Hello,
I'm trying to print a pdf file to printer directly from a Web service.
It works under IIS Express but in deployment machine it doesn't work.
Gives:
An error occured when call to 'gsapi_new_instance' is made: -100

The code is:

Using processor As New GhostscriptProcessor()
            Dim switches As New List(Of String)()
            switches.Add("-empty")
            switches.Add("-dPrinted")
            switches.Add("-dBATCH")
            switches.Add("-dNOPAUSE")
            switches.Add("-dNOSAFER")
            switches.Add("-dNumCopies=1")
            switches.Add("-sDEVICE=mswinpr2")
            switches.Add(Convert.ToString("-sOutputFile=%printer%") & printerName)
            switches.Add("-f")
            switches.Add(filename)

            processor.StartProcessing(switches.ToArray(), Nothing)
        End Using

IIS is running 64 bit.
ApplicationPool has an Administrator user identity.

[jhabjan]

It looks like permission issue. Try to change your Application Pool to use a User Identity.

[RobFra]

As I've wrote, I've already tried with a user thas has administrator rights.

[NabilKem]

Hi, did you find a solution to this error ??

Thanks

[tarcisiomartins]

I have the same problem.