Question about Canon CanoScan LiDE 25 Flatbed Scanner

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Tvichw32 Driver Open Error

I'm running Windows XP. Whenever I use the scanner, I get two errors. First: "Tvichw32 Driver Open Error", then "Cannot Load ASPI Layer Driver". The scanner will then perform scanning or copying just fine, but it won't work from within some other graphics/photo programs. I've deleted and reinstalled twice, but still the same errors.

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  • Aunt Pat Apr 17, 2008

    The scanner is new to this computer. The problem showed up when I installed this scanner and the bundled software and tried it out for the first time. There were no other events or changes to the system made at that time.

    I just downloaded and installed the latest ASPI drivers and checked the versions (which agree), but am still having the same problem. The scanner works properly, but for every page I scan, I have those two error messages appear.

    I can't access the Canon site, haven't been able to for weeks. It never loads, just keeps 'waiting'.

  • Aunt Pat Apr 18, 2008

    Actually, I am using Firefox as my default browser. So far the Canon site is the only one I can't access. I tried IE with the same non-results.


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Hello Aunt Pat

(01) Is this scanner "new" to the computer it is installed on now (where you're experiencing these issues)?

(02) Did this problem show up w/out apparent cause or relation to any recent changes on your system (e.g. New hardware or software installed, updated, upgraded or removed; system crash; computer repair; etc.)?

(03) Did the problem appear soon after a change to your system? (see above examples)

There are many references to this issue on the Internet. I've listed a few here. You can find many more, if you like, by performing search engine queries.

THIS links to a Roxio forum thread regarding this issue. (Even if you aren't using Roxio software, the information here could be relevant to your issue.)

THIS link will explain a bit about what TVICHW32 driver is.

I'd reinstall the ASPI drivers. A driver file may have become corrupted. (Assuming you'd been using this scanner successfully on this system until recently.)

You can find links for Adaptec's ASPI drivers on their web site HERE. They also have an ASPI version checker you can run to find out what verison is installed on your computer.

** Please, post back here w/ answers to
** these questions and the results of what
** you've tried. We may need to go back
** and forth a few times. We WILL continue
** to work w/ you until your problem is re-
** solved.
** Just be sure to not rate the experts' "sol-
** utions" until that time. Once you do,
** the problem will be closed and we'll no
** longer be able to assist you.
** Thank you @:)

Posted on Apr 10, 2008

  • 2 more comments 
  • B Joan Rapier
    B Joan Rapier Apr 10, 2008

    Here's a very informative article on reinstalling the ASPI layer on WindowsXP. I recommend you try the recommendations HERE first (b4 those of my previous post).

    BTW, HERE is Canon's listing for your scanner w/ downloads, faq's, etc.

    Thank you

    BJ @:)

    PS: Remember to provide ratings for the experts' solutions once your issue has been resolved. [You can assing the same rating to more than one expert - Even a "FixYa"] @:)

  • B Joan Rapier
    B Joan Rapier Apr 17, 2008

    Hello Aunt_Pat

    How did it go? Did the information and links I provided you w/ enable you to resolve your scanner issues?

    I DO hope that is the case. :) If it isn't, please, post back here and we'll continue to work w/ you.

    If it is the case, would you kindly take just a moment to assign a FIXYA rating for my "solution"? I would be very grateful for your generosity and show of appreciation.

    Thank you once again for using FixYa! Have a beautiful day.
    BJ @:)

  • B Joan Rapier
    B Joan Rapier Apr 18, 2008

    Hello Aunt Pat

    Thank you for getting back to me. As promised, I will continue to work w/ you on this issue. Fortunately, the scanner is working so you can at least scan (albeit w/ that annoying message) until we get this sorted out.

    I'm just popping in right now but I will look further into this this evening.

    In the interim, w/ respect to your not being able to view Canan's web site, I recommend you try a different browser for now. We can trouble-shoot the issue w/ not being able to access some sites (I doubt this issue is limited to Canon's site) later if you like.

    Mozilla Firefox is a rock solid and stable browser. It's kind of an off shoot of Netscape but far better. You can find it HERE.

  • B Joan Rapier
    B Joan Rapier Apr 18, 2008

    Hello Aunt Pat

    Thank you for getting back to me. As promised, I will continue to work this problem w/ you. Fortunately you can scan for now albeit w/ that annoying message.

    I'm just popping in for a few minutes but can't stick around. I will look into this issue some more for you tonight and post back here w/ my findings and suggestions.

    In the interim, w/ respect to your not being able to navigate to Canon, please, try a different browser (if you haven't done so already).

    Mozilla FF (Firefox) is a rock solid browser that I highly recommend. You can find it HERE. If you don't have it or the latest version of it already, please, download and install this browser. Then see if you can navigate to Canon's site using Mozilla FF.

    Thank you

    BJ @:)

    We can trouble shoot why you aren't able to access Canon's sites w/ the 1st browser later if you like.

    IOW, use a different browser than the one you've been trying to access Canon's links w/. I just made the assumption you were using IE (Internet Explorer).


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