.NET: How to print files w/o opening them

Question

We have an application that basically archives files and we give the user the possibility to print these files. They can be .txt, .doc, .pdf, .jpg nothing fancy. Is there a

Answer 1

I have to agree with other answers in that you can't print it without opening it.

The only way I think you may be able to get around this is if you had a straight-up postscript file, and a directly-attached postscript-compatible printer.

In that case you could just dump the .ps file to the LPT port and the printer would process it correctly.