@transmitthis - if you are going to replace a calibre icon/image there is a better way to do it (that will not get replaced when you next install the msi).
Go to Preferences->Miscellaneous, click on "Open the calibre configuration directory", and instead put the image in a resources\images folder from that directory.
See
http://manual.calibre-ebook.com/cust...lates-etcetera