When preparing your source documents for Doc-To-Help, you can include static graphics just as you would in a "normal" document. You do not need to use any nonstandard commands or specify target-specific escape sequences.
However, some of the graphics features introduced in older versions of Word are not suitable for Help authoring, and you should avoid using them. Here are some guidelines to follow when inserting pictures into Word source documents:
• Don't use floating pictures. Since online Help systems don't have the concept of Z-order, the placement of the picture may not be what you expect.
• Instead of pasting a picture into a document directly from the Clipboard, save the picture to a file and insert it as a linked object. That is, use the Link to file option in the Insert Picture dialog box. This will save you time if the pictures are likely to change.
• If a picture is too large, you can crop it or scale it in Word, and Doc-To-Help applies the appropriate transformations to the image file it generates during compilation. However, if you crop or scale a linked picture, use the Insert and Link option in the Insert Picture dialog box. Otherwise, Doc-To-Help reads the picture file from disk as is.
More:
Inserting Objects to Create Special
Effects in Word Documents