Bitness (16-bit, 32-bit, 64-bit, etc.) Issues
Can I use 32-bit software components on a 64-bit operating system?
Can I use 64-bit software components on a 32-bit operating system?
Do you produce 16-bit drivers?
Special Considerations when using Visual Studio and/or Microsoft SQL Server as the Data Consumer, on 64-bit Windows
Using ODBC (32-bit and 64-bit) on 64-bit Windows