I am using the following code:

* note that lcPrinterName comes from a table
lcbuffer = SPACE(500)
lnlength = LEN(lcbuffer)
lnlength = GetProStrg('printerports',lcPrinterName,"",@lcbuffer,lnlength)


It works on my development system (VFP 5.0a) but not at the clients.
Foxtools.FLL is in my project and marked to be included.
It is also in the subdirectory of the app at the clients office

He receives GETPROSTRG program not found

Any ideas?