Weblink.api causing slowdown in Acrobat Pro 9

Hello, Acrobat runs very, very, VERY slowly if I have weblink.api in the plug_ins folder. If I take it out, Acrobat runs OK, but is missing most/all of the features I need.
Running Acrobat without it is not possible. I need it to enable comments.
I have seen other posts about this issue that have gone ignored. Could someone shed some light on this critical problem?

Well, since there appears to be little interest in this problem, I will record what I'm doing on my own in hopes that someone else w/the same problem sees this. The reason I know that it's weblink.api that's causing the problem is because when I remove it from the plug ins folder and place it in an Optional folder that I created, performance returns to normal. This is fine, but without weblink.api the commenting feature is all but useless and I rely on it heavily to enter edits into the source document.
I used the Shared Review feature in another project, and still had documents live. I thought that the application might still be reaching out to those old review copies. So I ended all reviews and removed the documents from my review list (that feature is very slow, too, btw.)
That didn't help.
I have a workaround where I open the plug_ins folder and click and drag weblink.api to my Optional folder so that the document opens properly. Then I copy the PDF to another computer and so I can view the comments properly and make my changes. It's tedious, time-consuming, and somewhat error-prone, but it's better than what I've been doing.
I also print out comments only to PDF, close Acrobat Pro, remove weblink.api, and then open the comments up. Then I can copy and paste the edits. Also tedious, but better than trying to work with the sluggish performance.
I'll keep this thread open for another week or so.

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Weblink.api causing slowdown in Acrobat Pro 9

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