Windows 7 is actually Windows Vista, but a greatly improved and refurbished version. If you are having trouble installing a modem driver in Windows 7 the best quick way is the usual – run it in Windows Vista compatibility mode.
Windows 7 vista compatibility mode
The above mentioned solution is for those who have drivers for Windows Vista, but what if you have drivers for Windows XP and your device manufacturer has stop providing updates. In this case you can try running it in Windows XP compatibility mode, but this is not it.
I can vouch for the fact that some users will still have problems and if you are in such a situation, do not lose HOPE. When all else fails, it is time to be clever
