Yes, they are the same length. The system.convert.frombase64string must not do thesame type of conversion as VFP? It returns byte, which doesn't appear to do anything. Hopefully I don't need to create a .NET dll, call it on my remote side to encode the base64, send the file, then use the .NET decode..? Might be worth a try, but definitely adding overhead upon overhead for a web service...

>>Yes, I was getting some conversion errors, but just needed to recompile.
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>>However, I only appear to be getting 1K of data in my saved file on the ASP.Net side and the file is not readable. Is this a limitation of the string type there?
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>Check the length of the string before you convert it back from a base 64 string (on the web service side) - does it match the length sent from VFP?