TwidoSoft software will never be compatible with Windows 7 as this software is obsolete.
However, TwidoSuite version 2.31.4 is compatible with Windows 7, 32 and 64 bit

The Service pack v2.33 for TwidoSuite v2.31.4 is compatible with:

•Microsoft Windows 2000
•Microsoft Windows XP (Service Pack 3)
•Microsoft Windows 7 32bits / 64bits (Service Pack 1)
•Microsoft Windows 8 32bits / 64bits

The latest versions of TwidoSuite can be found in this FAQ.

Note: Twido was obsoleted in Dec. 2015 and no further development on product and has been replaced with the M221. The software to program this new controller is EcoStruxure Machine Expert Basic.
This will allow you to import your Twido project into the new platform.