NeroBurn error



I try to use Nero SDK with nero 7.
I try to burn one file and fill all structures as described in examples.
In the debugger I see that all structures filled OK.
When I call to NeroBurn function I receive error NERO_API_BURN_FAILED and LogLine callback throw to me the next error:
“The filename, directory name, or volume label syntax is incorrect.”
and gives to me path to the current folder (not to the folder where the file i try to burn).
Could you help me and explain why it is happens and from where it take this folder?
Thank you.