Hi Mike,

>
>I'm trying to install Mere Mortals .Net Framework 2005 V2.3 in windows vista 64 bit OS. Unfortunately, I always get this error message.
>
>The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2869
>
>Am I missing on something?
>
>Thanks in advance

If you are using VS 2005 why don't you try to install the latest version 2.4? Do you have VS 2008 also?
Tim