I am able to replicate the problem with their data on my computer. I will send you the data and you will be able to replicate it too. My ADS32.DLL version is 1.12.54.2983.

I tried another set of large data and interestingly, the slowness did not occur for a single item/single customer, nor for a single item/customer range, but it did occur for a item range/single customer. No matter what sort order I selected. So apparently the slowness is more fickle, I'm sorry to say.

I was aware of the Microsoft Windows Updates and I asked about that. They told me that they do not have automatic install turned on and they have not chosen to install them.

I am guessing that nothing has changed from yesterday, except they did a single item lookup today, and they had done an item range lookup yesterday. So I withdraw that part of my questions.

Steve