Either our software breaks, or their software breaks. A further issue is that non-legacy software will sometimes install the 64-bit drivers (as they should), and the two versions simply do not coexist in any reasonable manner. Either the 64-bit Office breaks our installation, or our installation breaks their Office version, but it's not pretty either way. As computers come off the assembly line with 64-bit versions installed, we're unable to keep up with support requests when our software breaks something. Trust me, we've tried to educate users that 64-bit Office is largely unnecessary, to no avail. However, the problem begins when Office 2010 64-bit is installed on the system. Indeed, when we install 32-bit drivers on a 64-bit machine, and run our 32-bit applications, it works correctly. So, we are under the assumption that the driver must also be installed as 32-bit. Our software deals with a lot of legacy components that are 32-bit, and much of it is in VB6 code, which generates 32-bit assembly. However, apparently you need to always install the 32-bit version if the host process is always 32-bit.

The engine comes in 64-bit and 32-bit forms, which is good. We currently have a major issue using Microsoft Access Database Engine 2010.

Cannot install microsoft office