Hier mal das Log:

2009-09-08 17:00:12.9151 : 1 : Info : Rolling the log files...
2009-09-08 17:00:12.9638 : 1 : Info : Starting:
C:\Program Files\NCsoft\Launcher\_Launcher.exeC:\Program Files\NCsoft\Launcher\NCLauncher.exe
Full assembly name: _Launcher, Version=1.5.10.0, Culture=neutral, PublicKeyToken=null
2009-09-08 17:00:12.9651 : 1 : Info : Windows version: 6.1.7100.0 (Vista)
2009-09-08 17:00:14.0338 : 1 : Info : Patcher: BeginOp: Suche nach Updates ... : () : 0%
2009-09-08 17:00:14.0488 : 1 : Info : Patcher: BeginOp: Getting Current Version : () : 0%
2009-09-08 17:00:14.0738 : 1 : Info : BasicDownloader: Downloading 1 files for a total of : bytes.
2009-09-08 17:00:14.0826 : 1 : Info : BasicDownloader: Downloading from "http://launcher.patcher.ncsoft.com/NCLauncher/Main/Manifests/CurrentVersion.xml" to "C:\Users\Hermann\AppData\Local\Temp\tmp439C.t mp".
2009-09-08 17:00:15.0501 : 1 : Info : BasicDownloader: Response Host "launcher.patcher.ncsoft.com" IP 0 = 206.127.148.74
2009-09-08 17:00:15.0538 : 1 : Info : BasicDownloader: Download of "http://launcher.patcher.ncsoft.com/NCLauncher/Main/Manifests/CurrentVersion.xml" completed successfully.
2009-09-08 17:00:15.0638 : 1 : Info : FileVerifier: Verifying: 'C:\Users\Hermann\AppData\Local\Temp\tmp439C.tmp' Expected Hash = '' Expected Length = -1
2009-09-08 17:00:15.0638 : 1 : Info : FileVerifier: PASS: File exists, and there is no hash or length to test against.
2009-09-08 17:00:15.0663 : 1 : Info : Patcher: EndOp: Getting Current Version : () : 0%
2009-09-08 17:00:15.0851 : 1 : Info : Patcher: BeginOp: : () : 0%
2009-09-08 17:00:15.0851 : 1 : Info : Patcher: EndOp: : () : 20%
2009-09-08 17:00:15.0901 : 1 : Info : Patcher: EndOp: Suche nach Updates ... : () : 0%
2009-09-08 17:00:17.4271 : 1 : Error :


Summary For :
======================================
--> MachineName: HERMANN-PC
--> TimeStamp: 08.09.2009 15:00:17
--> FullName: NC.Logging, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
--> AppDomainName: StubDomain
--> WindowsIdentity: Hermann-PC\Hermann

Exception Information Details:
======================================
Exception Type: System.UnauthorizedAccessException
Message: Der Zugriff auf den Pfad "C:\Program Files\NCsoft\Launcher\Config\Default\Extensions\Ai on Internal\Games\Games.xml" wurde verweigert.
Data: System.Collections.ListDictionaryInternal
TargetSite: Void WinIOError(Int32, System.String)
HelpLink: NULL
Source: mscorlib

StackTrace Information Details:
======================================
bei System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
bei System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy)
bei System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
bei System.Xml.XmlTextWriter..ctor(String filename, Encoding encoding)
bei System.Xml.XmlDocument.Save(String filename)
bei NC.Launcher.ItemList.LoadItemsFile(String itemsFile, LauncherGameAddendums gameAddendums)

2009-09-08 17:00:20.4462 : 1 : Info : Checking to see if the game (AionEU) can apply transition CheckForUpdates.
2009-09-08 17:00:20.4462 : 1 : Info : Attempting transition - 0 other operations are currently taking up low bandwidth.
2009-09-08 17:00:20.5899 : 8 : Info : Patcher: BeginOp: Suche nach Updates ... : () : 0%
2009-09-08 17:00:20.5924 : 8 : Info : Patcher: BeginOp: Getting Current Version : () : 0%
2009-09-08 17:00:20.5924 : 8 : Info : BasicDownloader: Downloading 1 files for a total of : bytes.
2009-09-08 17:00:20.5924 : 8 : Info : BasicDownloader: Downloading from "http://aion.patcher.ncsoft.com/Aion/Main/Manifests/CurrentVersion.xml" to "C:\Users\Hermann\AppData\Local\Temp\tmp5D35.t mp".
2009-09-08 17:00:21.1624 : 8 : Info : BasicDownloader: Response Host "206.127.147.194" IP 0 = 206.127.147.194
2009-09-08 17:00:21.1624 : 8 : Info : BasicDownloader: Download of "http://aion.patcher.ncsoft.com/Aion/Main/Manifests/CurrentVersion.xml" completed successfully.
2009-09-08 17:00:21.1637 : 8 : Info : FileVerifier: Verifying: 'C:\Users\Hermann\AppData\Local\Temp\tmp5D35.tmp' Expected Hash = '' Expected Length = -1
2009-09-08 17:00:21.1637 : 8 : Info : FileVerifier: PASS: File exists, and there is no hash or length to test against.
2009-09-08 17:00:21.1637 : 8 : Info : Patcher: EndOp: Getting Current Version : () : 0%
2009-09-08 17:00:21.1662 : 8 : Info : Patcher: BeginOp: : () : 0%
2009-09-08 17:00:21.1662 : 8 : Info : Patcher: EndOp: : () : 20%
2009-09-08 17:00:21.1662 : 8 : Info : Patcher: EndOp: Suche nach Updates ... : () : 0%
2009-09-08 17:00:45.8106 : 1 : Info : Patcher: BeginOp: Suche nach Updates ... : () : 0%
2009-09-08 17:00:45.8143 : 1 : Info : Patcher: BeginOp: Getting Current Version : () : 0%
2009-09-08 17:00:45.8143 : 1 : Info : BasicDownloader: Downloading 1 files for a total of : bytes.
2009-09-08 17:00:45.8143 : 1 : Info : BasicDownloader: Downloading from "http://launcher.patcher.ncsoft.com/NCLauncher/Main/Manifests/CurrentVersion.xml" to "C:\Users\Hermann\AppData\Local\Temp\tmpBFBF.t mp".
2009-09-08 17:00:45.9018 : 1 : Info : BasicDownloader: Response Host "launcher.patcher.ncsoft.com" IP 0 = 206.127.148.74
2009-09-08 17:00:45.9018 : 1 : Info : BasicDownloader: Download of "http://launcher.patcher.ncsoft.com/NCLauncher/Main/Manifests/CurrentVersion.xml" completed successfully.
2009-09-08 17:00:45.9018 : 1 : Info : FileVerifier: Verifying: 'C:\Users\Hermann\AppData\Local\Temp\tmpBFBF.tmp' Expected Hash = '' Expected Length = -1
2009-09-08 17:00:45.9018 : 1 : Info : FileVerifier: PASS: File exists, and there is no hash or length to test against.
2009-09-08 17:00:45.9031 : 1 : Info : Patcher: EndOp: Getting Current Version : () : 0%
2009-09-08 17:00:45.9031 : 1 : Info : Patcher: BeginOp: : () : 0%
2009-09-08 17:00:45.9043 : 1 : Info : Patcher: EndOp: : () : 20%
2009-09-08 17:00:45.9043 : 1 : Info : Patcher: EndOp: Suche nach Updates ... : () : 0%
2009-09-08 17:00:46.4818 : 1 : Info : Checking to see if the game (AionEU) can apply transition Run.
2009-09-08 17:00:46.4818 : 1 : Info : Attempting transition...
2009-09-08 17:00:46.4931 : 8 : Info : Patcher: BeginOp: Suche nach Updates ... : () : 0%
2009-09-08 17:00:46.4968 : 8 : Info : Patcher: BeginOp: Getting Current Version : () : 0%
2009-09-08 17:00:46.4968 : 8 : Info : BasicDownloader: Downloading 1 files for a total of : bytes.
2009-09-08 17:00:46.4968 : 8 : Info : BasicDownloader: Downloading from "http://aion.patcher.ncsoft.com/Aion/Main/Manifests/CurrentVersion.xml" to "C:\Users\Hermann\AppData\Local\Temp\tmpC25F.t mp".
2009-09-08 17:00:47.3431 : 8 : Info : BasicDownloader: Response Host "aion.patcher.ncsoft.com" IP 0 = 206.127.148.84
2009-09-08 17:00:47.3431 : 8 : Info : BasicDownloader: Download of "http://aion.patcher.ncsoft.com/Aion/Main/Manifests/CurrentVersion.xml" completed successfully.
2009-09-08 17:00:47.3431 : 8 : Info : FileVerifier: Verifying: 'C:\Users\Hermann\AppData\Local\Temp\tmpC25F.tmp' Expected Hash = '' Expected Length = -1
2009-09-08 17:00:47.3443 : 8 : Info : FileVerifier: PASS: File exists, and there is no hash or length to test against.
2009-09-08 17:00:47.3443 : 8 : Info : Patcher: EndOp: Getting Current Version : () : 0%
2009-09-08 17:00:47.3456 : 8 : Info : Patcher: BeginOp: : () : 0%
2009-09-08 17:00:47.3456 : 8 : Info : Patcher: EndOp: : () : 20%
2009-09-08 17:00:47.3456 : 8 : Info : Patcher: EndOp: Suche nach Updates ... : () : 0%
2009-09-08 17:00:48.3244 : 1 : Info : Checking DirectX Version : 9.0c Or Higher (C:\Windows\system32\d3d9.dll - 6.1.7100.0)
2009-09-08 17:00:48.3269 : 1 : Info : Checking for D3D file: d3dx9_39.dll. It exists in the system folder.
2009-09-08 17:00:48.3269 : 1 : Info : System meets DirectX reqs.
2009-09-08 17:00:48.6769 : 1 : Error : There was an error while launching the game: Aion - AionEU - Aion/Main



Summary For :
======================================
--> MachineName: HERMANN-PC
--> TimeStamp: 08.09.2009 15:00:48
--> FullName: NC.Logging, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
--> AppDomainName: StubDomain
--> WindowsIdentity: Hermann-PC\Hermann

Exception Information Details:
======================================
Exception Type: System.ComponentModel.Win32Exception
NativeErrorCode: 5
ErrorCode: -2147467259
Message: Zugriff verweigert
Data: System.Collections.ListDictionaryInternal
TargetSite: Boolean StartWithCreateProcess(System.Diagnostics.ProcessS tartInfo)
HelpLink: NULL
Source: System

StackTrace Information Details:
======================================
bei System.Diagnostics.Process.StartWithCreateProcess( ProcessStartInfo startInfo)
bei System.Diagnostics.Process.Start()
bei NC.Launcher.GameItems.GameItem.LaunchingState.Show EulaAndStartProcess(GameInstanceAuthData authData)

2009-09-08 17:00:48.6794 : 1 : Error : Creating ErrorState



Summary For :
======================================
--> MachineName: HERMANN-PC
--> TimeStamp: 08.09.2009 15:00:48
--> FullName: NC.Logging, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
--> AppDomainName: StubDomain
--> WindowsIdentity: Hermann-PC\Hermann

Exception Information Details:
======================================
Exception Type: System.ComponentModel.Win32Exception
NativeErrorCode: 5
ErrorCode: -2147467259
Message: Zugriff verweigert
Data: System.Collections.ListDictionaryInternal
TargetSite: Boolean StartWithCreateProcess(System.Diagnostics.ProcessS tartInfo)
HelpLink: NULL
Source: System

StackTrace Information Details:
======================================
bei System.Diagnostics.Process.StartWithCreateProcess( ProcessStartInfo startInfo)
bei System.Diagnostics.Process.Start()
bei NC.Launcher.GameItems.GameItem.LaunchingState.Show EulaAndStartProcess(GameInstanceAuthData authData)
bei NC.Launcher.GameItems.GameItem.LaunchingState.Ente r()


Fehler: Falsche Version von AION (32bit)

LÖSCHUNG: Installation von AION 64 bit version