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- Thu May 02, 2013 9:40 pm
- Forum: VintaSoft Twain .NET SDK Discussions
- Topic: Bad protocol error on device.open
- Replies: 1
- Views: 2835
When I call Device.open , I get a Twain Error: "General failure in response to DAT_CAPS. Bad protocol error." This happens in my own code, but also in the demos provided by VintaSoft. The error is shown in a message box, displayed by the scanner software. My scanner is a VistaScan , used to scan den...