Could not load file or assembly 'Oracle.Web, Version=2.112.1.0... The system cannot find the file specified. (It's already loaded in my GAC)

I'm trying to run my web app which references Oracle.Web, which is already loaded in my GAC:

When I run my web app, I get the error message:

The Oracle.Web DLL is 32-bit.

EDIT: Here's a printout of the assembly bind failure log for Oracle.Web. Basically, it fails to load from the GAC:

* Assembly Binder Log Entry (6/19/2013 @ 10:20:49 AM) *

The operation failed. Bind result: hr = 0x80070002. The system cannot find the file specified.

Assembly manager loaded from: C:\Windows\Microsoft.NET\Framework64\v2.0.50727\mscorwks.dll Running under executable c:\windows\system32\inetsrv\w3wp.exe

--- A detailed error log follows.

=== Pre-bind state information === LOG: User = IIS APPPOOL\DefaultAppPool LOG: DisplayName = Oracle.Web, Version=2.112.1.0, Culture=neutral, PublicKeyToken=89b483f429c47342 (Fully-specified) LOG: Appbase = file:///C:/blah/HR/ForHR/HRWS/ LOG: Initial PrivatePath = C:\blah\HR\ForHR\HRWS\bin LOG: Dynamic Base = C:\Windows\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files\HRws\c1e0f910 LOG: Cache Base = C:\Windows\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files\HRws\c1e0f910 LOG: AppName = 1f90b2c5 Calling assembly : (Unknown). === LOG: This bind starts in default load context. LOG: Using application configuration file: C:\blah\HR\ForHR\HRWS\web.config LOG: Using host configuration file: C:\Windows\Microsoft.NET\Framework64\v2.0.50727\Aspnet.config LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework64\v2.0.50727\config\machine.config. LOG: Post-policy reference: Oracle.Web, Version=2.112.1.0, Culture=neutral, PublicKeyToken=89b483f429c47342 LOG: GAC Lookup was unsuccessful. LOG: Attempting download of new URL file:///C:/Windows/Microsoft.NET/Framework64/v2.0.50727/Temporary ASP.NET Files/HRws/c1e0f910/1f90b2c5/Oracle.Web.DLL. LOG: Attempting download of new URL file:///C:/Windows/Microsoft.NET/Framework64/v2.0.50727/Temporary ASP.NET Files/HRws/c1e0f910/1f90b2c5/Oracle.Web/Oracle.Web.DLL. LOG: Attempting download of new URL file:///C:/blah/HR/ForHR/HRWS/bin/Oracle.Web.DLL. LOG: Attempting download of new URL file:///C:/blah/HR/ForHR/HRWS/bin/Oracle.Web/Oracle.Web.DLL. LOG: Attempting download of new URL file:///C:/Windows/Microsoft.NET/Framework64/v2.0.50727/Temporary ASP.NET Files/HRws/c1e0f910/1f90b2c5/Oracle.Web.EXE. LOG: Attempting download of new URL file:///C:/Windows/Microsoft.NET/Framework64/v2.0.50727/Temporary ASP.NET Files/HRws/c1e0f910/1f90b2c5/Oracle.Web/Oracle.Web.EXE. LOG: Attempting download of new URL file:///C:/blah/HR/ForHR/HRWS/bin/Oracle.Web.EXE. LOG: Attempting download of new URL file:///C:/blah/HR/ForHR/HRWS/bin/Oracle.Web/Oracle.Web.EXE. LOG: All probing URLs attempted and failed.

QUESTION: Does anyone have any ideas as to why I'm having this issue?

You need enable it for 32 bit application in the application pool your website from IIS.

open IIS>application pool> Enable 32 bit application= true