|  11-18-2011, 03:13 AM | #1 | 
| Junior Member  Posts: 4 Karma: 10 Join Date: Nov 2011 Device: kindle | 
				
				Trouble installing Cabibre
			 
			
			I am trying to install Calibre on my windows.  After downloading Calibre for windows and attempting to run/install it, I receive the following message: "This installation package could not be opened. Contact the application vendor to verify that this is a valid Windows Installer package." Any ideas what could be causing this? Thanks! | 
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|  11-18-2011, 03:17 AM | #2 | |
| Well trained by Cats            Posts: 31,250 Karma: 61360164 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A | Quote: 
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|  11-19-2011, 03:56 AM | #3 | 
| Junior Member  Posts: 4 Karma: 10 Join Date: Nov 2011 Device: kindle | 
			
			ok, thanks!   i'll try to troubleshoot with the methods they suggest in the FAQs
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|  11-19-2011, 03:59 AM | #4 | 
| Junior Member  Posts: 4 Karma: 10 Join Date: Nov 2011 Device: kindle | 
			
			Calibre portable works!  very excited as this opens up a whole new world for me.
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|  11-19-2011, 04:38 AM | #5 | 
| Wizard            Posts: 4,553 Karma: 950151 Join Date: Nov 2008 Device: Sony PRS-950, iphone/ipad (Marvin/iBooks/QuickReader) | 
			
			Note that the error you got for the standard Calibre installation suggests that you got a corrupted download.    Having said that if the Calibre Portable variant meets your need there is no reason to not go with it as from a functional point of view it is no different to the standard install other than the fact it assumes a particular folder layout at startup. | 
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