It is a component of malware or spyware, you should immediately remove it using an antivirus and antispyware program. If that does not help, then ask us for help in the Spyware removal forum.

Name: AdSubscribe
Filename: AdSubscribe.dll
Registry key:

HKEY_LOCAL_MACHINE\software\microsoft\windows\currentversion\explorer\shelliconoverlayidentifiers\AdSubscribe
HKEY_CLASSES_ROOT\CLSID\{82C885EE-6B87-4D51-9EF4-0CFE9FADA900}

Command: shelliconoverlayidentifiers
CLSID: clsid
Startup Type:
Combofix/RSIT Line:

[HKEY_LOCAL_MACHINE\software\microsoft\windows\currentversion\explorer\shelliconoverlayidentifiers\AdSubscribe]
@=”{82C885EE-6B87-4D51-9EF4-0CFE9FADA900}”
[HKEY_CLASSES_ROOT\CLSID\{82C885EE-6B87-4D51-9EF4-0CFE9FADA900}]
2009-06-23 21:11 750080 —-a-w- c:\documents and settings\user\Application Data\AdSubscribe\AdSubscribe.dll
2009-06-23 21:11 . 2009-06-23 21:11 ——– d—–w- c:\documents and settings\user\Application Data\AdSubscribe
2009-06-23 21:11 . 2009-06-23 21:11 807424 —-a-w- c:\documents and settings\user\Application Data\AdSubscribe\Uninstall.exe
2009-06-23 21:11 . 2009-06-23 21:11 750080 —-a-w- c:\documents and settings\user\Application Data\AdSubscribe\AdSubscribe.dll

Description: adware also known as AdWare.FearAds, Trojan-Downloader.Win32.Adload.fib, Worm.Win32.Malware.gen

How to remove: ask help at Spyware removal forum.