They're likely competing for resources rather than for SQL. I believe Lytec runs on SQL 2008 while Amazing Charts runs on SQL 2005. The recommended amount of memory/RAM for Lytec is 4GB and AC also needs 1-2GB. The issue is that Windows XP is limited at 4GB (realistically at 3-3.3GB).

My first recommendation would be checking the Task Mananager by pressing CTRL+SHIFT+ESC on the XP server to see if memory usage is high. We are interested in the total and the amount available. The example below the total amount is ~2,000,000 K or (2 gigabytes) and the free amount is ~1,500,000 K or (1.5 GB).


[Linked Image from ]

Also given that the server is XP Pro, my guess is that the processor is also dated as well.