Server.CreateObject Fails when calling .Net object from ASP on 64-bit windows in IIS 32-bit mode
- by DrFredEdison
I have a server running Windows 2003 64-bit, that runs IIS in 32-bit mode. I have a COM object that was registered using the following command:
C:\WINDOWS\microsoft.net\Framework\v2.0.50727>regasm D:\Path\To\MyDll.dll /tlb:MyTLB.tlb /codebase
When I create the object via ASP I get:
Server object error 'ASP 0177 : 8000ffff'
Server.CreateObject Failed
/includes/a_URLFilter.asp, line 19
8000ffff
When I create the object in a vbs script and use the 32-bit version of cscript (in \Windows\syswow64) it works fine.
I've checked permissions on the DLL, and the IUSR has Read/Execute.
Even if I add the IUSR to the Administrators group, I get the same error.
This is the log from ProcessMonitor filtering for the path of my dll (annotated with my actions):
[Stop IIS]
1:56:30.0891918 PM w3wp.exe 4088 CloseFile D:\Path\To\MyDll.dll SUCCESS
[Start IIS]
[Refresh ASP page that uses DLL]
1:56:42.7825154 PM w3wp.exe 2196 QueryOpen D:\Path\To\MyDll.dll SUCCESS CreationTime: 8/19/2009 1:11:17 PM, LastAccessTime: 8/19/2009 1:30:26 PM, LastWriteTime: 8/18/2009 12:09:33 PM, ChangeTime: 8/19/2009 1:22:02 PM, AllocationSize: 20,480, EndOfFile: 20,480, FileAttributes: A
1:56:42.7825972 PM w3wp.exe 2196 QueryOpen D:\Path\To\MyDll.dll SUCCESS CreationTime: 8/19/2009 1:11:17 PM, LastAccessTime: 8/19/2009 1:30:26 PM, LastWriteTime: 8/18/2009 12:09:33 PM, ChangeTime: 8/19/2009 1:22:02 PM, AllocationSize: 20,480, EndOfFile: 20,480, FileAttributes: A
1:56:42.7826961 PM w3wp.exe 2196 CreateFile D:\Path\To\MyDll.dll SUCCESS Desired Access: Generic Read, Disposition: Open, Options: Synchronous IO Non-Alert, Non-Directory File, Attributes: N, ShareMode: Read, Delete, AllocationSize: n/a, Impersonating: SERVER2\IUSR_SERVER2, OpenResult: Opened
1:56:42.7827194 PM w3wp.exe 2196 CreateFileMapping D:\Path\To\MyDll.dll SUCCESS SyncType: SyncTypeCreateSection, PageProtection:
1:56:42.7827546 PM w3wp.exe 2196 CreateFileMapping D:\Path\To\MyDll.dll SUCCESS SyncType: SyncTypeOther
1:56:42.7829130 PM w3wp.exe 2196 Load Image D:\Path\To\MyDll.dll SUCCESS Image Base: 0x6350000, Image Size: 0x8000
1:56:42.7830590 PM w3wp.exe 2196 Load Image D:\Path\To\MyDll.dll SUCCESS Image Base: 0x6360000, Image Size: 0x8000
1:56:42.7838855 PM w3wp.exe 2196 CreateFile D:\Webspace\SecurityDll\bin SUCCESS Desired Access: Read Data/List Directory, Synchronize, Disposition: Open, Options: Directory, Synchronous IO Non-Alert, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, Impersonating: SERVER2\IUSR_SERVER2, OpenResult: Opened
1:56:42.7839081 PM w3wp.exe 2196 QueryDirectory D:\Path\To\MyDll.INI NO SUCH FILE Filter: SecurityDll.INI
1:56:42.7839281 PM w3wp.exe 2196 CloseFile D:\Webspace\SecurityDll\bin SUCCESS
[Refresh ASP page that uses DLL]
[Refresh ASP page that uses DLL]
[Refresh ASP page that uses DLL]
This dll works fine on other servers, running 32-bit windows. I can't think of anything else that would make this work. Any suggestions?
UPDATE
The .dll is not in the GAC, it is compiled as 32-bit, and is Strongly signed.
