Reply To: [Urgent] Critical issue with TWAIN DSM 2.0 and Windows Vista

[lcarrere]

Hi again Jim.

Finally I found the reason !

On Vista, when computer is set to apply DEP to all programs and services the TWAINDSM.DLL crash the calling application on a MSG_OPENDS request.

I was able to reproduce the problem on all my Vista computers.

A solution is to switch the DEP for Windows programs & services only (the default configuration I think):

# Click Start, click Run, type sysdm.cpl, and then click OK.
# Click the Advanced tab, click Performance, and then click Settings.
# In Performance Options, click the Data Execution Prevention tab, and select the first option, then apply.

I think it is a critical issue for the twaindsm.dll which should be resolved 😀 .

Kind regards,

Loïc

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GdPicture Imaging SDK
Imaging Toolkits for developers .NET & ActiveX
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Image Processing, TWAIN scanning, OCR, PDF/A