running the old version of msxsl.exe on NT SP5

My previous version of the software (still needs to be supported) uses
msxsl.exe from Microsoft to process xml and xsl (in old format).
Unfortunately the msxsl.exe executable only works with NT SP3. It gives me
an error on SP4/5:
  Error parsing document 'obv.xml'
  Exception: hr = 0x80070057
I don't want to change hundreds of the xsl style sheets. Are there any
suggestions on how to make msxsl.exe work on NT SP5 for Y2K compliant?

Larry


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