This file is a "Dynamic Link Library" (DLL) developed by Valve Corporation . It’s essentially a piece of shared code that games use to talk to the Steam platform for things like achievements, friend lists, and multiplayer features. Without it, the game simply doesn't know how to "talk" to Steam. The Temptation of the Quick Fix
Go to the tab and click Verify integrity of game files . This will automatically download any missing or corrupted official DLLs. steamapirajasdll download link
If you're experiencing issues with Steam and think a DLL file might be the problem, try reinstalling Steam. This should replace any corrupted or missing DLL files. This file is a "Dynamic Link Library" (DLL)
