64 bit operating systems are becoming more and more popular every day. Therefore, your LSP needs to be 64 bit as well – otherwise you will not be able to install it on a 64 bit operating system.
You will need to install the 32 bit LSP first. When you run a 32 bit application on a 64 bit operating system, that application is first going to load the 32 bit DLLs and the 32 bit LSP.
Now, when you run a 64 bit application on your 64 bit operating system, that application loads the 64 bit DLLs. This obviously means that you will need to have the 64 bit LSP installed.
The operating system is going to keep both of the different LSP stacks: 32 bit LSP and 64 bit LSP. You have to have an installer in both versions as well. When you are installing, be sure to install the 32 bit LSP first.
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