Extendware extensions are extremely easy to enable / disable.
1) Click on to Extendware -> Manage Extensions -> Overview, click on the extension name.
2) Set its Status to Disabled.
3. Click Save.
Note 1: You can also disable extensions generally by renaming their xml file in app/etc/modules to have a non-xml suffix and then flush the Magento cache.
Note 2: You can also disable third party extensions this way (generally).
Do the same as above, just "Enable" instead of "Disable".