After upgrading environment from 7.1 to 7.5 version package server will attempt to download package Deploy.cab but will be stuck in status 'Retrying to download'.
Unable to get buffer length for SD of file '\\NSServerName\Deployment\Task Handler\Sysprep\Deploy_Cab\X86' (67)
The xml of the package resource contains paths 'C:\Program Files\Altiris\Altiris Agent\Agents\Deployment\Task Handler\Sysprep\Deploy_Cab' which were used by Deployment Solution in 7.1 but have been changed in 7.5 to use 'C:\Program Files\Altiris\Notification Server\NSCap\bin\Deployment\Packages\Sysprep\Deploy_Cab'.
Export the xml of the problematic package.
In source type line change location from "\\NSServerName\Deployment\Task Handler\Sysprep\Deploy_Cab\X86" to "\\NSServerName\NSCap\bin\Deployment\Packages\Sysprep\Deploy_Cab\x86".
<source type="unc" location="\\NSServerName\NSCap\bin\Deployment\Packages\Sysprep\Deploy_Cab\X86" isReplicating="false" />
PkgsvrLocation line needs to be changed to <pkgSvrLocation />.
Save the modified xml.
Delete the problematic resource from NS server.
Reimport the modified xml file.
Run Resource Membership Update, from Windows Task Scheduler run tasks NS.Package Refresh, NS.Package Distribution Point Update and NS.Package Server Status Event Capture Item.
ITMS 7.5 HF6