Using the exe I did get asio in musicbee and foobar (foobar does need an asio component to work). Sure there's no audible difference between the 2 (at least that i can hear), but I'm a little OCD when it comes to getting things to work properly....
For the ASIO drivers you'll need to install using the .exe; however, you could also try the following:
Extract the following files to your program files/(new folder, give it a name)/
"Custom.ini"
"Tusbaudioasio.dll"
"Tusbaudioasio_x64.dll"(if you run 64bit windows)
Now run command prompt with admin rights, and type the following:
regsvr32 "c:\program files\(name of folder)\tusbaudioasio.dll"
Press enter, a popup should tell you that installation succeeded.
Do not forget the quotation marks in that command, as windows command prompt doesn't read spaces in filepaths.
If this succeeded, you can repeat it with the x64 file(if you are running a 64bit operating system)
Please let me know if this works, i have no means of testing it, as i don't use ASIO drivers, or own the X3 anymore.
If you want to unregister the .dll's, you run the command as above, but put /u between the program (regsvr32) and the files, as such:
regsvr32 /u "c:\program files\(name of folder)\tusbaudioasio.dll"