I am currently on Domino 8.0.1, and trying to install MR1 for 5.0.1 in a Windows 2008 SP2 environment. Everytime I go to install I get the following error:

Error opening installation log file. Verify that the specified log file exists and is writable.

I've verified that the install_log.txt file exists in the following directory: c:\Program Files\Research In Motion\BlackBerry Enterprise Server\Logs\Installer. I followed the installation instructions in Release Notes, and I even tried a recommended workaround for a 5.0.0 MR1 install known issue:

• Create a shortcut for the besn501mr#.msp.
• Right-click the shortcut, and then click Properties.
• In the Target field, type the following text: msiexec.exe /update besn5011.msp_file_location.
• Click OK.
• Right-click the shortcut, and then click Run as.
• Select the following user option, and specify an administrator's login information.
• Click OK.

Has anyone run into this yet with 5.0.1 MR1 for Domino?

Thanks
Riggs

I'm getting ready to do this next weekend. Did you install the MS fix listed in the known issues?