I've searched for "OLE" and "Highlight" a lot but never found anything. BUT I solved my problem...Solution: 
$word->Options->DefaultHighlightColorIndex(wdYellow);
$word->Selection->Find->Replacement->{'Highlight'}=1;

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In reply to Re^2: How to Highlight with OLE by MysticRyuujin
in thread How to Highlight with OLE by MysticRyuujin

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