General questions what OS are you running?

have you completed all windows updates? (security and any .net framework)

If the software is licensed to the company that went out of business and you are auditted and have no affilliation with the company then it is theft. Up to you.

you can be sure caperjack its for Windows Media player 7 its a skin

How to Remove DSO Exploit
Use caution when modifying the registry to fix this DSO Exploit!

Using Spybot Search & Destroy look for the DSO Exploit and then:
1) First, the this DSO Exploit Fix....

If what crunchie advised didn't work you can try this:

for WinAdsToolSX.dll

To uninstall these modules from memory, type regsvr32 /u %systemroot%\downlo~1\ followed by the DLL file name, e.g....

My company is currently evaluating/pilotting this software to possibly remove all virus software (definition based 3 day instead of 0 day protection) from our corporate users.

If you read more...

when registering the dll's use the following command

regsvr32.exe /s dll name


also make sure you are in the directory where the dll is and needs to be registered.