This file has been reported to be part of a spyware/malware/trojan. It is likely that the problem you are experiencing is linked directly to the spyware/malware/trojan rather than an actual missing DLL-file and the recommended course of action is to first locate/remove the Malware. We do not recommend downloading this file.
DLL-Files.com Support says:
This adware program may arrive on a system through the Web, manual installation, or as a downloaded program. It also comes packaged with the famous peer-to-peer (P2P) application called FreeWire.
This is a possible manual solution for you 'handyman-fixers' out there:
WARNING: Do this at your own risk. manually changing the registry could cause system critical errors if done incorrectly, the instructions below are not guaranteed to work on your particular system setup.
Identifying the Spyware/Adware/Dialer Program
Removing Autostart Entries from the Registry
Removing autostart entries from the registry prevents the adware from executing at startup.
Open Registry Editor. Click Start>Run, type REGEDIT, then press Enter.
In the left panel, double-click the following:
Still in the left panel, delete the subkey:
NOTE: If you were not able to terminate the adware process as described in the previous procedure, restart your system.
Removing Services Entries from the Registry
Open Registry Editor. To do this, click Start>Run, type REGEDIT, then press Enter.
In the left panel, double-click the following: HKEY_LOCAL_MACHINE>System>CurrentControlSet>Services
In the Services folder, look for the folder WS2IFSL and delete it.
Close Registry Editor.
Deleting Adware File
Open Windows Explorer. Right-click Start and click Explore.
In the left panel, navigate to the Widnows system folder, which is usually C:\Windows\System or C:\WINNT\System32.
In the right panel, locate and delete the following files:
All files detected as ADW_TARGETSOFT.A.
If one or some of the files can't be deleted, restart in safe mode.
Close Windows Explorer.