can't install AutoCAD 2011

[Anonymous]

my problem is that i can't install the software autocad 2011

my computer is running windows vista, a 64bit version, and I've also taken the 64bit installation dvd

there's no problem with the licence, and setup also starts to install the software, but it breaks up after 2 minutes and then there's the announcement installation failed (that's my translation, I wanted to install the german version, there it sais "Installation fehlgeschlagen")

this is from the setup editor (I tried several times)

2010/11/5:13:54:46    Corn    CORN-PC    === Setup started on CORN-PC by Corn ===
2010/11/5:13:56:13    Corn    CORN-PC    === Setup ended ===

2010/11/5:13:55:58    Corn    CORN-PC    === Setup started on CORN-PC by Corn ===
2010/11/5:14:01:00    Corn    CORN-PC    Install    Microsoft Visual C++ 2008 Redistributable (x86)    Failed    Installation aborted, Result=1603
2010/11/5:14:02:55    Corn    CORN-PC    Install    Microsoft Visual C++ 2008 Redistributable (x86)    Failed    Installation aborted, Result=1603
2010/11/5:14:05:11    Corn    CORN-PC    === Setup started on CORN-PC by Corn ===
2010/11/5:14:05:11    Corn    CORN-PC    Es wird bereits eine Instanz des Setups ausgeführt. Es kann nur jeweils eine Instanz des Setups ausgeführt werden.2010/11/5:14:05:16    Corn    CORN-PC    === Setup ended ===

2010/11/5:14:07:34    Corn    CORN-PC    === Setup ended ===

2010/11/5:14:12:04    Corn    CORN-PC    === Setup started on CORN-PC by Corn ===
2010/11/5:14:12:54    Corn    CORN-PC    === Setup ended ===

2010/11/5:14:12:39    Corn    CORN-PC    === Setup started on CORN-PC by Corn ===
2010/11/5:14:13:09    Corn    CORN-PC    Sie können auf dem aktuellen Betriebssystem dieses Produkt nicht installieren.2010/11/5:14:13:26    Corn    CORN-PC    Sie können auf dem aktuellen Betriebssystem dieses Produkt nicht installieren.2010/11/5:14:13:32    Corn    CORN-PC    === Setup ended ===

2010/11/5:14:17:36    Corn    CORN-PC    === Setup started on CORN-PC by Corn ===
2010/11/5:14:19:08    Corn    CORN-PC    === Setup ended ===

2010/11/5:14:18:52    Corn    CORN-PC    === Setup started on CORN-PC by Corn ===
2010/11/5:14:21:12    Corn    CORN-PC    Install    Microsoft Visual C++ 2008 Redistributable (x86)    Failed    Installation aborted, Result=1603
2010/11/5:14:28:07    Corn    CORN-PC    === Setup ended ===

thanks for helping

[TravisNave]

You'll likely need to install the Microsoft Visual C++ 2008 Redistributable manually from Microsoft first, as it is failing on installing this prerequisite. 

[Anonymous]

I'm sorry but i can't install Microsoft Visual C++ 2008 Redistributable manually, there is an installing error occuring. I've tried it several times. what else can I try??