my task is to create a virtual printer in Windows,I have to control the printing process from a firm, I search information about this subject, but nothing.
You may be an excellant programmer, but never forget that when communicating with others (and also in programming) there are rules of grammar and sentence construction. Follow those rules helps others (as well as compilers) decipher the meaning of the written communique or instruction.
Please consider:
My task is to create a virtual printer in Windows. I have to control the printing process from a firm. (Do you mean firm or form?) I (have) search(ed for) information about this subject, but (have not found anything).
Proper writing skills will enhance the impression you make in a faceless medium, such as the internet.