I write a UDF which I can run it when interpreted. The problem is, when I compile it, the following messege appeared: -------------------------------------------------------- 1 file(s) copied. (system "copy C:\Fluent.Inc\fluent6.2.16\src\makefile_nt.udf libudf\ntx86\2ddp\makefile") 1 file(s) copied. 0 (chdir "libudf")() (chdir "ntx86\2ddp")() 'nmake' is not recognized as an internal or external command, operable program or batch file. -------------------------------------------------------- When I load it, the following messege appeared:

Opening library "libudf"... Error: open_udf_library: The system cannot find the file specified.

Can any one solve this problem. Thank in advance!

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