Problem Event Name: InPageError
Error Status Code: c000009c
That's a rarer one nowadays. It can indicate disk/file damage on the PC.
I'd try running a disk check (chkdsk) over your C drive, or whichever drive you install your program files on.
There's Vista instructions in the following document.
Select both Automatically fix file system errors and Scan for and attempt recovery of bad sectors. You'll probably need to schedule the scan to run on restart. The disk check should take quite a while to run (if you're running it on the C). If it quits after a few minutes or seconds, something's interfering with the scan.
Does the disk check find/repair any damage? If so, are you able to launch iTunes now?