Before the release of v3.4.2 I had been trying to install BlackBerry Link. However, the installation failed everytime shortly after I launched it and the eventviewer showed this to be an error 1603. Subsequent to the release of v3.4.2 I have been trying again to install the software. Now the installation is almost completed but just before the installation is completed it rolls back. Again, the eventviewer shows this as an error 1603. The messages shown during the latter part of the installation move very fast so its difficult to see precisely when the rollback starts to happen. However I think the two preceeding messages before the roll back are "Writing registery values" and then "Installing new services". After that the installation rolls back. I've attached screenshots showing the errors from the eventviewer. I am running Windows 7.
Most sincere thanks for giving this attention, stephen