Ventrilo

Every time I try to install Ventrilo, a command prompt and an error comes up saying,

"16 bit MS-DOS Subsystem

The NTVDM CPU has encountered an illegal instruction.
CS:128c IP:032d OP:63 69 6e 67 3d Choose 'Close' to terminate the application.
Close Ignore"

I downloaded the 32-bit one, and my laptop is a 32-bit, vista.
 
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