Dublex Printing Excel Worksheets from VB.Net

Hi All,

I am developing an excel automation application. I have almost completed it but I have a major problem at hand. After collecting some data and combining it with databases I can fill in excel sheets but when it comes to printing created file, my problem arises. I can print single pages indivudially. There are 10 sheets one of which must be printed as dublex. I searched forums and many topics especially in this forum. There are recommendations, in which printer name is introduced in the codes. However, I can not use them as my application can be used in any of hte available printers which are all able to print dublex pages. Is there any dll or code you can help me or get me started? There are also some codes for VBA to do this but in my case they are not applicable. I cannot figure out anything.

Any help is appreciated. Thank you!