Operating Requirements

Unless otherwise specified, the operating requirements delineated in this topic include service packs supported by Microsoft.

Operating Systems

TwainPRO™ runs on 32-bit and 64-bit Microsoft Windows operating systems:

Windows Vista
Windows 7
Windows 8
Windows 10
Windows Server 2003 R2
Windows Server 2008 (To use a scanner with Windows Server 2008, you must install Desktop Experience.)
Windows Server 2012 (To use a scanner with Windows Server 2012, you must install Desktop Experience.)
Windows Server 2016 (To use a scanner with Windows Server 2016, you must install Desktop Experience.)

TwainPRO runs in 64-bit and 32-bit executables.

Although it may run, TwainPRO is not supported on previous Windows versions (for example, Windows XP).

Threading

Accusoft considers thread-safe to be when an application using this component can use multiple controls running in the same process, where they don't interfere with each other. The thread creating the control owns the control and is the only thread that can interact with it.

Development Environment

Microsoft Visual Basic 6
Microsoft Visual C++
Any other development environment that supports ActiveX/COM