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Morena 6 working fine on IE-32 bit but not on IE-64 bit

Forums › TWAIN Classic › Morena 6 working fine on IE-32 bit but not on IE-64 bit

  • This topic has 1 reply, 2 voices, and was last updated 5 years, 5 months ago by xricht17.
Viewing 2 posts - 1 through 2 (of 2 total)
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  • August 14, 2015 at 7:11 pm #23031 Reply
    Michael.Shapira
    Participant
    • Topics - 1
    • Replies - 0
    • Total Posts - 1

    Hi. I am running More studio demo on IE-32 bit and it is working fine. Om IE-32 bit it gives exception SYSTEM32/TWAINDSM.dll (Windows 7 64 bit)

    I did search the forum and I didn’t understand the clear instructions where to put the TWAINDSM file for 32 and 64 bits.

    Also it doen’t clear for me how it is working at all since I run a global search for TWAINDSM.dll on my PC and didn’t find it. But it DOES work for 32 bit

    Thank you

    August 15, 2015 at 11:05 am #26311 Reply
    xricht17
    Participant
    • Topics - 1
    • Replies - 2
    • Total Posts - 3

    You can obtain TWAINDSM.dll in both 32bit and 64bit flavours here:
    https://sourceforge.net/projects/twain-dsm/files/TWAIN DSM 2 Windows 32+64/

    32bit Windows

    • TWAINDSM.dll from twain32 goes to WindowsSystem32
    • TWAINDSM.dll from twain64 is not used

    64bit Windows

    • TWAINDSM.dll from twain32 goes to WindowsSysWOW64
    • TWAINDSM.dll from twain64 goes to WindowsSystem32

    The reason 32bit IE works fine even though you don’t have TWAINDSM.dll anywhere on your system is simple. Windows provides older TWAIN DSM in the form of twain_32.dll (Windows). This old DSM is used in case TWAINDSM.dll is missing, but it’s only available for 32bit applications. MS doesn’t include TWAINDSM.dll in their OSes, only twain_32.dll, and that means no 64bit TWAIN unless you install it yourself.

    Another thing is that 32bit applications may only access 32bit data sources in Windowstwain_32 and 64bit applications only 64bit data sources in Windowstwain_64. And 64bit data sources are virtually nonexistent.

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Reply To: Morena 6 working fine on IE-32 bit but not on IE-64 bit
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