NOTE: This is not a dupe of this other question. That question refers to a similar problem with 2 programs, while I'm only having it with 1, so the solution there doesn't apply to my situation.

My relative asked me to install H&R Block 2009 on his Windows Vista 32-bit computer. I ran the installation program, which succeeded, but when I try to open the application itself, it gives me the following error:

The application failed to start because its side-by-side configuration is incorrect. Please see the application event log for more detail.

Here are the steps I've done so far to try and remedy this problem:

1. In elevated command prompt, run the command: sfc /scannow
2. Uninstall H&R Block 2009
3. Uninstall Microsoft Visual C++ 2005 Redistributable
4. Reinstall Microsoft Visual C++ 2005 Redistributable by downloading from MSFT website
5. Reinstall H&R Block 2009

This didn't fix it. I've searched for a long time and haven't found anything that works. The H&R Block site itself states that the way to fix this problem is to uninstall and reinstall H&R Block 2009.

Has anyone run into this issue before? If so, how can I fix it? Thanks in advance.