Michel,
I copied a small program, and I believe it was posted here in the UT, that might be usefull for you:
LOCAL loExchangeRate,lnRate,lcHtml
loExchangeRate=Createobject("mssoap.soapclient30")
loExchangeRate.mssoapinit("http://www.xmethods.net/sd/CurrencyExchangeService.wsdl")
lnRate=loExchangeRate.GetRate('United States','Canada')
I do not use it myself, just took a look and seems to be working, and visiting the webpage, it seems to be free
http://www.xmethods.net/ve2/ViewListing.po;jsessionid=lPSWQ1NrbcJA9v4kof5GgsVF(QHyMHiRM)?key=uuid:D784C184-99B2-DA25-ED45-3665D11A12E5
"The five senses obstruct or deform the apprehension of reality."
Jorge L. Borges?
"Premature optimization is the root of all evil in programming."
Donald Knuth, repeating C. A. R. Hoare
"To die for a religion is easier than to live it absolutely"
Jorge L. Borges