Getting "Unable to load Steam.dll" when trying to load Peggle Extreme

It seems copying the Steam.dll into the game folder might help. Source: Steam forum.

Edit: In the comments, someone mentioned you should reinstalling Steam. If you choose to try that, don't forget Steam lets you back up your games. (In the menu, select Steam > Backup and Restore Games)
If you do that, you won't have to re-download all the games again.

I have deleted "steamservice.exe" file under bin directory and it has fixed. I have catched it from bootstrap_log file under the steam directory.

[2014-08-04 00:04:57] BCommitUpdatedFiles: failed to rename package\tmp.\bin\steamservice.exe_ -> ./bin/steamservice.exe (error 6800)