I can't get eCommerceStation 1.2R to install. I'm trying to upgrade a working Warp 4 installation on a HDD that also has a working XP Home installation on it. The install fails, with 0x1604 / "CAS0021: PUTSTATEVAR cannot open the file CONFIG.SYS for input." errors. I opened a support ticket at ecomstation.com, but no reply was ever recieved. I posted the problem at their installation problems "user group", but no one has replied. I've hidden all other primary partitions and any extended / logical partition not recognized by Warp (there is a FAT32 paritition that is visible, since I use FAT32.IFS). eCs only offers 1 partition to install into (HPFS primary containing Warp 4). Before the install, C:\config.sys exists, as well as C:\config.001 through C:\config.016 & C:\config.sys.backup. After the failed install, all of those files have been deleted. There are about 4 autoexec.xxx's that are there before and after the install. So it seems like the install routine deletes the required config.sys file prematurely. My XP primary partition is the second primary paritition, physically behind the HPFS primary. The third primary is currently empty. The Warp 4 installation worked fine until I upgraded my hardware. I did not expect Warp 4 to work on the new hardware (AMD62 X2), but from what I've read, I expected eCS to work. Does anybody have any suggestions to resolve this problem. Thank you.