Sefiroth

New here, tried to install Big World yesterday, and I'm really confused and need help with it.
At first everything went smoothely, yet after I chose the modes for installation, the following lines showed in the window:

......
First all fixes will be installed according to the instruction. You are prompted to make a choice at several times.
processing fixes for "iSylm"

With that, another window "patch.exe" poped up, and yet nothing happend. I waited for a couple of hours and still it was simply blank and the process cannot continue.

I'm running Win7, and I tried with stopping the UAC, but the problem remained.

I also tried searching for some solutions but couldn't find it. Can anyone help, please?