NI-VISA is installed, but visa32.dll could not be loaded.

[tosko]

Hi,

When I start MAX, it shows the yellow exclamation mark icon and "VISA Error" under Devices and Interfaces.

The description of the error is "C:\Windows\system32\visa32.dll was found but could not be loaded."

I followed MAX's suggestion to repair the VISA installation but the error remains the same.

I also tried to uninstall and reinstall VISA again but it doesn't make any difference.

I'm using

NI-VISA 4.2

MAX 4.3

Best Regards

Tosko

[muks]

I am quoting matt's reply to a similar problem

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A complete uninstall is PROBABLY not necessary. Usually we can get NI-VISA straightened out without destroying too much of what you have done.

A) Yes, C:\Windows\System32\ is the correct place to be looking for VISA32.dll. If it's not there, NI-VISA will have issues (any VISA for that matter).

B) You definitely want this file to be put there by our installer, not just placing it there. NI-VISA does install some reg-keys that have to be there in order for it to run correctly.

C) Instead of doing a repair on NI-VISA, I would recommend an uninstall (of only NI-VISA), then a reinstall of NI-VISA. Make sure you're using the latest installer for your Windows.


Let us know if we can be of any more assistance.

Regards,
Matt S.

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[tosko]

I did try to uninstall and reinstall NI-VISA, but it didn't help.

However, I finally got it to work by uninstalling as much NI software as possible and then reinstalling it again.

Can't tell why it solved the problem, but I'm happy again.

Thanks anyway

Tosko

[muks]

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I finally got it to work by uninstalling as much NI software as possible and then reinstalling it again.

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But you  should still have that visa32.dll in its place right? Uninstalling  as much visa software  will not solve that problem right?

[jut1]

i have found that although my 3rd party software requires visa32, but the installer see's the 64bit os and automaticaly installs visa64. there is no option to install the 32 bit version. maby you have the same problem.