WB22 - webservice and images

Hi,

I have a webservice running, used by remote clients (a WD app) to download images.The image is send as a plain buffer.

After sending 1000+ images without problems I now get complains that sometimes the lower half of an image is black.

Does anyone know if the PCSoft webengine (knowing that this is a webservice) converts the buffers to base64?
Or do I have this to do myself?

ST_Image is structure
sName is string
bImage is buffer
END

stImage is ST_Image
IF HReadSeekFirst(Tbl_Document,DocumetnID,someid)
stImage.sName = "blabla"
stImage.bImage = Tbl_Document.Document -> this is a binary memofield holding the image
END

RESULT stImage