i just tryed the installer on windows 7 64 bit, it moans but installed.
if you go to the warning about m/s not testing the dver click continue anyway.
crashing maybe even be down to your firewall / anti-virus software stopping the driver from installing as it trying to get access to a port.
so if possible shut down your firewall, anti-virus only while your trying to get this cam installed.
i installed this and found the three basic files it install's in winodws so you can try it this way as well.
download the winrar file on this post.
unpack it to folder on your desktop.
plug the cam in and wait for windows to finish screwing about looking for a driver.
when its done that go in to device manager and look down the list for the problem cam.
right click your mouse on that and select update driver.
at this point don't let windows search online tell it you want to search.
click browse button and now browse to that unpacked files.
highlight one of the files and click next,
that will bypass the self install but it will also bypass the amcap program which does crash on windows 7
these three files are the basic cam driver.
you can move the cam down one usb port now as well.
if the driver is installed windows will now auto find it and reload the driver.
if you do that please make sure no firewall is on not even windows firewall.
its just gone 2am i need some sleep, hoever if you still can't get a picture out of that cam try this.
take the back of the cam off and look at the chipset with your eyes just in case you have the wrong sonix chip.