>Anybody knows how to get some info from NT workstation about NetWare files. I need to know who is using specified file. Novell Client32 for NT is not an option.

If you want to access Novell's API directly, you can download Novell's Developer Kit from http://developer.novell.com/ndk; alternatively, NETLIB is a commercially available product that will probably cost less than the time you'd spend adapting the necessary API calls to do what you want. HALLoGRAM carries NETLIB, it sells for about $400.