Distribution to Client PC's

Hi,

Currently in process of re-writing VB6 app(Charity Accounts) into VB2010 and have now included Crystal Reports.

It's going to be a long task but I thought I had better check up on distribution before I go any further.

I would like to know a couple of things please.

1. I won't know if a client pc is 64bit or 32 bit Windows, do I have to create 2 different set-ups with the 32bit .msi in one and the 64bit in another OR could I just force installation onto the 32bit Program Files(x86).

2. Is it only the .msi file I need,

3. Having asked that, is there another/better way for installation?

finally,

I'm thinking of using Inno Setup to install my VB project, will that cause a problem with Crystal Reports.

Many thanks in advance,

Tim