>Hi, George!
>>You have to use a FoxPro Dynamic Link Library (FLL extension) with SET LIBRARY TO...In order to access the functions in a regular Windows DLL, you have to use the DECLARE syntax referencing the individual function names and the DLL file name.
>
>Thank you for an answer.
>I did not write that I control about 20 computers and this is a problem of only one computer. Everywhere it's work correct.

Hmm, the file should be built as an FLL then. Perhaps there's some versioning problem or the file has become corrupt.