Bookmark Create(
    DocumentRange range,
    string name
)

Function Create(
    range As DocumentRange,
    name As String
) As Bookmark

using DevExpress.XtraRichEdit;
using DevExpress.XtraRichEdit.API.Native;

using (var wordProcessor = new RichEditDocumentServer())
{
    wordProcessor.LoadDocument("Documents//Document.docx");
    Document document = wordProcessor.Document;

    // Create a bookmark at the document start
    DocumentRange start = document.CreateRange(document.Range.Start, 1);
    document.Bookmarks.Create(start, "Top");

    // Insert the hyperlink anchored to the created bookmark
    DocumentRange[] foundRanges = document.FindAll("To the Top", SearchOptions.CaseSensitive);
    if (foundRanges.Length > 0)
    {
        Hyperlink hyperlink = document.Hyperlinks.Create(foundRanges[0]);
        hyperlink.Anchor = "Top";
    }
}

Imports DevExpress.XtraRichEdit
Imports DevExpress.XtraRichEdit.API.Native

Using wordProcessor = New RichEditDocumentServer()
    wordProcessor.LoadDocument("Documents//Document.docx")
    Dim document As Document = wordProcessor.Document

    ' Create a bookmark at the document start
    Dim start As DocumentRange = document.CreateRange(document.Range.Start, 1)
    document.Bookmarks.Create(start, "Top")

    ' Insert the hyperlink anchored to the created bookmark
    Dim foundRanges() As DocumentRange = document.FindAll("To the Top", SearchOptions.CaseSensitive)
    If foundRanges.Length > 0 Then
        Dim hyperlink As Hyperlink = document.Hyperlinks.Create(foundRanges(0))
        hyperlink.Anchor = "Top"
    End If
End Using

DocumentPosition pos = document.Range.Start;
 document.Bookmarks.Create(document.CreateRange(pos, 0), "Top");
//Insert the hyperlink anchored to the created bookmark:

DocumentPosition pos = document.Range.Start;
document.Bookmarks.Create(document.CreateRange(pos, 0), "Top");
//Insert the hyperlink anchored to the created bookmark:

// Create a bookmark at the start document position.
document.Bookmarks.Create(document.CreateRange(document.Range.Start, 0), "Top");

Dim pos As DevExpress.XtraRichEdit.API.Native.DocumentPosition = document.Range.Start
document.Bookmarks.Create(document.CreateRange(pos, 0), "Top")
'Insert the hyperlink anchored to the created bookmark:

Dim pos As DocumentPosition = document.Range.Start
document.Bookmarks.Create(document.CreateRange(pos, 0), "Top")
'Insert the hyperlink anchored to the created bookmark:

' Create a bookmark at the start document position.
document.Bookmarks.Create(document.CreateRange(document.Range.Start, 0), "Top")
' Create a hyperlink that navigates to the created bookmark.