(If Reftagger can work for WordPress, why can't it be made to work for Microsoft Word? If it is compatible with Word, where can I find documented instructions for incorporating Reftagger - or anything comparable - into my Word document?)
Reftagger does not work with Word or any other word processor, as far as I know. (I am not knowledgeable enough to say why it can't work.)
I'm not aware of anything else that can do that either, though it is possible, I suppose.
I have Windows 7, MS Word 2000, and use the Google Chrome Web browser.
Logos Smart Tags needs Office 2002 and newer => https://www.logos.com/articleviewer/530 Logos Wiki has => https://wiki.logos.com/Smart_Tags
Logos has a COM API => https://wiki.logos.com/Logos_4_COM_API so Visual Basic for Applications (VBA) could be written to Copy Bible Verses for pop-up display with option to insert into document. Microsoft has VBA examples for inserting text into Word 2000 => http://support.microsoft.com/kb/212682
Logos wiki has => https://wiki.logos.com/Copy_Bible_Verses that has similar tools in TheWord and SwordSearcher so can copy reference from Word 2000, switch to Bible program, paste reference, use Copy Bible Verse to copy formatted verse(s), switch back to Word 2000 followed by pasting.
By the way, LibreOffice is free, which supports newer docx format => https://www.libreoffice.org/download/libreoffice-fresh/
I already have two awesome Bible s/w packages, one is FREE (theWORD), and the other is the Deluxe Library version of SwordSearcher 7.1 (but if you want the NASB Bible included, it cost about $35 or so if I remember correctly).
Apologies: both packages lack the ability to combine hundreds of searches for simultaneous display. My favorite Logos feature is visual filter highlighting so can see range of Greek verbal expression in Greek, English, and Spanish. Logos wiki has => https://wiki.logos.com/Extended_Tips_for_Highlighting_and_Visual_Filters#Examples_of_visual_filters
NASB 95 is $ 10 from Logos => https://www.logos.com/product/308/the-new-american-standard-bible-1995-update
Logos Bible Software is Free => https://www.logos.com/support/logos5/install
Logos offers many resources for $ 0.00 => http://www.logos.com/products/search?start=&sort=pricelo&pageSize=15
plus Vyrso eBooks can be used in Logos apps => https://vyrso.com/products/search?start=&sort=pricelo&pageSize=60
Thankful for 920 free Vyrso eBooks since Thanksgiving 2011.
To use more of the capabilities and features in Logos, would need to purchase appropriate resources and datasets; wiki has => https://wiki.logos.com/Upgrade_or_Crossgrade_to_Logos_6$3f
To "purchase" resource license(s) for $ 0.00 from Faithlife corporation, will need to have a credit card associated with your account. An order total of $ 0.00 only appears in your Faithlife account history.
Keep Smiling [:)]
Morris, what you want can be done but you are really trying to mix 2 incompatible concepts. Mouse-over functions are for interactive environments such as the web or applications; Microsoft Word is designed for creating static documents for reading, printing, etc. There may well be a Visual Basic macro that already does what you want. http://answers.microsoft.com/en-us#Office would be the place to start looking for such a macro.
InstaVerse claims to display scripture references in Word documents. I have limited experience with it but if I remember correctly it was a bit clunky and unreliable. May be worth a shot. Google "InstaVerse" (it is tied to Wordsearch).