The Prolog is the header portion of a file which all well-formed XML documents should contain, and will typically look something like:
<?xml version="1.0" encoding="UTF-8" ?>
If you are attempting to Map from an XML document that does not contain this prolog, with a Build of Xe between 075 and 090, you will need to download and apply the following fix.
To apply this fix, please shutdown Xe and take a backup copy of the following files from the Xe installation directory (you should always backup DLL’s before replacing them) –
DXCBAS00V1.dll
DXCDAT00V1.dll
DXCDXE00V1.dll
DXCEDI00v1.dll
DXCIDX00V1.dll
DXCMAN00V1.dll
DXCXLT00V1.dll
DXCXML00V1.dll
Once you have done this, extract the files in the zip file to the Xe installation directory. You will now be able to perform this Map.