On oscommerce MS2.2, without changes (no addons, no mods), you'll have to develop this feature:
Onto backoffice, add a page where you'll select a product. When you've chosen this product (called product A), you'll be able to choose on or several others products (called product B, C, ...).
Take care, a bundle can have 2 or more products, for example:
Onto frontoffice, onto product A page, you'll display a module which will show other associated products (B, C, ...). You'll display picture, price, title, add to cart button.
If you'll clic onto "Add to cart" button, you'll add in cart A + B, or A + C, etc ...
bundle is A+B, you'll get in cart 2 products : A and B
bundle is A+C, you'll get in cart 2 products : A and C
bundle is A+B+C, you'll get in cart 3 products : A, B and C
Into cart, if you'll delete A, you'll delete all linked products too.
Into cart, if you'll delete B, C, ... you'll delete products A (and linked products too).
Into cart, if you'll update quantity A, B, C, ... you'll update quantity all linked products too.
You must put all text into languages files (don't hardcod them).
You've to deliver updated and new files, sql files.
Into changed files, you'll have to start and finish changes by a comment.
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