Has anyone else experience this…on machines which I have an application updated via ClickOnce, it takes almost 10-20 mins to download and install a 2MB install…this was working fine until I reached my 26th build…and after that.I checked the network and it’s normal…I ran the installer on a new machine and it was lightening fast! so I am thinking it might have to do with the prior installations on the machines.
Is ClickOnce maintaining a cache on the client machines, perhaps that needs cleaning?
ClickOnce keeps the current version and one previous. That shouldn’t be the issue.
The first place I would check is the server where the files are deployed. Run Fiddler while your app updates to see what exactly is going on with the network traffic.
In addition, you may want to look into compressing your ClickOnce traffic. It can make a huge difference in your download sizes.