Calling 32 binary from 64 bit application

I am working on an application which is in 32 bit. This app is working fine in 32 bit machine . But when I install it in 64 bit machine it does not work properly. So we planned to compile it in 64 bit configuration. We could compile it and tried to run, It works properly. But problem is; we have a 3ed party library which is in 32 bit. If I try to call that l开发者_StackOverflow社区ibrary from 64 bit, will it create problem, will it work? I am running it in windows 7 64 bit amchine. Please guide me to supporting my application to 64 bit.

The JET database engine will never be ported to 64-bit. You will have to consider a different engine. SQL Server Compact or Express are excellent choices.