Can't start Hexxit

[Striker_J]

Title: Can't start Hexxit

Version: 1_0_4

OS: Windows 7 Home Premium 64 bit

Java Version: Version 7 Upadate 45

Description of Problem:

When I click play, the FML starter won't show up, it'll just sit at: version.json for a few seconds, disappear, and nothing will happen.

Error Messages:

Error Log:

Starting download of http://mirror.technicpack.net/Technic/version/1.5.2/1.5.2.json, with 3 tries remaining

java.io.FileNotFoundException: C:\Users\EF\AppData\Roaming\.technic\hexxit\bin\natives\OpenAL64.dll (The process cannot access the file because it is being used by another process)

	at java.io.FileOutputStream.open(Native Method)

	at java.io.FileOutputStream.<init>(Unknown Source)

	at java.io.FileOutputStream.<init>(Unknown Source)

	at net.technicpack.launchercore.util.ZipUtils.unzipEntry(ZipUtils.java:102)

	at net.technicpack.launchercore.util.ZipUtils.unzipFile(ZipUtils.java:159)

	at net.technicpack.launchercore.install.ModpackInstaller.installLibrary(ModpackInstaller.java:228)

	at net.technicpack.launchercore.install.ModpackInstaller.installVersionLibs(ModpackInstaller.java:200)

	at net.technicpack.launchercore.install.ModpackInstaller.installPack(ModpackInstaller.java:82)

	at org.spoutcraft.launcher.InstallThread.run(InstallThread.java:60)

[Striker_J]

I read a post earlier about fixing my Hexxit, so would anyone know where I could delete my "version.json" file?

[Striker_J]

I deleted file, but now it says: (in short) "Cannot delete 1.5.2 DamageIndicators v2.7.0.1, its being used by the Java Platform SE binary", and I have to delete file for my Hexxit to start! Sadly, I cannot find this "binary platform" to "close" the file. Help!