I installed MSDE, and it doesn't work. So I went to uninstall it, and I get the following error:

"Another program is being installed. Please wait for that installation to complete, and then try installing this software again."

I am not running any installer, I have rebooted, shutdown and restarted... nothing I do will allow me to uninstall this program. From what I could find on google, it could be a registry key not getting cleared out? Does anyone have any ideas?

try re-running the MSDE installer and rmoving it through there, also for vista use SQL 2005 express, it is the MSDE version of SQL 2005, but much nicer

When I run the installer again to try and remove it, I get the same error. I already run SQL Express, I was trying to test an older version of our software that needed MSDE.

ahh,

if worst comes to worst, you might have to run the MSDE installation on another machines, use process monitor to capture everything that happens during the installation, and manually rip out all the registry keys and settings on the machine. not the best soultion but it would work

Use the Windows Install Cleanup Utility to fix the issue.

I tried running the Windows Install Cleanup Utility, and it gives me the same error. Another installation is in progress, and it has to cancel. Where could I get a good process monitor?

Process Monitor 1.12

Thank you. I really appreciate it.

is the registry in Vista laid out the same as the registry in XP? If not, what is different about the registries?

Sorry. Just noticed that the cab file has a MSI inside. Installing it is hopeless if your MSI installation data in the registry is corrupt to start with.
Try extracting this zip archive and run msicuu.exe.
Click to view attachment

Edit:
I sent some feedback on the link that i previously gave you.