Resolved Control Panel Discrepancy

I've installed two computer programs I've written in order to test their functionality. I've had to install them on different occasions after finding unexecutable code. I did not always use the control panel to uninstall these programs. I simply deleted them through windows explorer. Now I have duplicates of these programs showing up in the control panel and I can not get rid of them. When I try to uninstall them I get the following message:
"Could not open log file C:\Program Files\PWLibrary\ST6UNST.000 "
I simply want these out of the control panel. They're irratating, confusing and clutter things up. I have not been able to find where the informaiton is stored for the control panel to display. I checked the register and was unsuccessful. Where does windows store this data so I can go directly to the source and get rid of them.

 

Just to let you know that I was able to download ccleaner and it got rid of the entries. The only problem I had was downloading the program. Windows took their cleaning tool off line. Ccleaner wouldn't download. Alll you get is software to purcahse. I finally wet to a search engine and entered ccleaner and actually found the site where it could be downloaded. Thanks for the help.