Google told me that their might be permission issue against current user, then i found i have Current Identity: IIS APPPOOL in malfunctioning server where as rest of server have Current Identity: NT AUTHORITY\NETWORK SERVICE. then i changed Current Identity from IIS APPPOOL to NT AUTHORITY\NETWORK SERVICE. then found after recompiling(modification in web.config recompile the web application), i have found Temporary ASP.NET Files. which now malfunctioning server start creating temp file.
Other Labels:
System.IO.FileLoadException: Could not load file or assembly
Solution to "Could not load file or assembly or one of its dependencies. Access is denied"
Could not load file or assembly '******' or one of its dependencies. Access is denied.
C#: Could not load types from assembly
