# Vantage 4.812 performance
**Category:** [Yahoo Archive](https://www.epiusers.help/c/yahoo-archive/9)
**Created:** 2000-09-07 07:39 UTC
**Views:** 406
**Replies:** 2
**URL:** https://www.epiusers.help/t/vantage-4-812-performance/1033
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## Post #1 by @system
Dick,
Part of your problem could be in the registery of each client machine.
Did you change drive letter mappings when you migrated?
Did the server and/or share name change?
Did you have a "test" server up and running with a different name and drive letter map?
We have found that vantage/progress makes a lot of OCX and DLL entries in the registery. Try using the UNREGOCX.bat file to remove these perveyors of slowness. If you look in your registry, (search for \DLC\ which is no longer used or for other server or share names that are different) you may find several entries that point to paths that no longer exist. If you have a spare unit sitting around, try formatting and re-installing the OS and install the vantage client on this unit. If you find it responds much quicker, I think you may find the registry entries are to blame. When we converted to 4.0 several months back, we encountered the same problem. Also there will be reg entries that refrence drive letters and others that would refrence the UNC path name.
Good luck.
David
>>> dick.plaman@... 09/06/00 03:38PM >>>
Fellow Epicorians,
we've just migrated to V4.812. Everything is running OK, but
response's have gone
south. Our sever (Compaq 3000, dual 550's, 1G RAM) was adequate in V3.
I just received
a complaint in a user running the Time Phased Material Report. It took
5 minutes in V3,
and 15 minutes in V4. Initial program load also takes longer.
My question is, is there anything that can be done to improve
response times.
Creating the schema file does little to imrpove performance.
TIA.
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**Canonical:** https://www.epiusers.help/t/vantage-4-812-performance/1033
**Original content:** https://www.epiusers.help/t/vantage-4-812-performance/1033