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As far as I know I cannot install a number of custom extensions in a batch like when I run myurl/Install/Install.aspx?mode=upgrade. This only seems to occur when a new version of DNN is also loaded under the install folder structure. I know that I can do this one by in the Host --> Extensions --> Install Extension Wizard but we have a number of externsions to install and it would be nice to package all of the CustomExtension.zip files into a folder and be able to run a process that would install / upgrade each of those modules. Is there any way to accomplish this because when I load them under the Install\Module folder and attempt to run the myurl/Install/Install.aspx?mode=upgrade I just get a blank screen and nothing happens.