WotLK Beta Installer Crash

[Tunga]

When I try to install the beta it crashes after 5-10 seconds with "Blizzard Installer has stopped working". I've redownloaded via two different mirrors but get the exact same problem.

Full crash details (though I can't see anything useful in it):
Problem signature:
Problem Event Name: APPCRASH
Application Name: Installer*****
Application Version: 3.2.2.359
Application Timestamp: 487bad9d
Fault Module Name: Installer*****
Fault Module Version: 3.2.2.359
Fault Module Timestamp: 487bad9d
Exception Code: c0000005
Exception Offset: 000b3d69
OS Version: 6.0.6001.2.1.0.256.6
Locale ID: 2057
Additional Information 1: 03c3
Additional Information 2: e86f7f6dee073c84f8ddcdd35d722e3e
Additional Information 3: e75f
Additional Information 4: 8b4ccb46a46113e4b8f2a106a780aea4

System specs:
MSI P35 Neo-F
Intel Core 2 Duo E6750
2GB Corsair DDR2 PC6400 XMS
EVGA 8800GTS 320MB

I can't find any reference to others having similar problems. Any ideas?

[Tunga]

Sorry for the double post, should probably mention that this is Vista Business 32-bit, I tried forcing permissions on all relevant (source) folders and files but that didn't help. UAC is disabled.

[Clavina]

I can't really add anything other than the standard right-click and do 'run as administrator' and make sure it's not saved in your program files directory.

[Tunga]

Yeah, tried Run as Admin (I'm on a true Admin account anyway) and moving the files around but no luck Thanks for the ideas anyway :) .

[Tunga]

Just a note in case someone ends up here from searching, I resolved this by installing in Safe Mode.

[Wintrow]

I would've never thought of that...