LabVIEW 2011 breaks LabVIEW 8.5

[jyang72211]

I un-installed both LabVIEW 2011 and 8.5.  Then, I re-installed 8.5.  The same "nip2p.dll is missing" error occured.  I deleted all dll starting with the prefix "ni" in the folder system32, but that didn't fix the problem.  Any thoughts on that? 

[Zachmx]

We generally do not recommend manually deleting dll files, but the solution mentioned earlier outlined a reinstall of LabVIEW 8.5.1 and (older) DAQmx after doing so. Did you try this step as well?

[jyang72211]

Yes, I did.  I removed all NI software from my laptop, and I re-installed LabVIEW 8.5 and (older) DAQmx.  I actually installed 8.5 and not 8.5.1. 

[Ben]

The "msiblast" thingy mentioned above should fix up registration.

It looks like the dll is still registered. Try that to cover the steps outlined above.

Ben