web service assembly version hell

hello,

I'm in the middle of deploying a web service.

I've tested and deployed on my local machine, it works.
I've tested and eployed in a dev environment, it works.
I've Installed the ws on the live server and it doesn't.

The idea is that the web service feeds of some assemblies that are already in the gac (they were installed as part of a related web site)


Here is the exception:

The located assembly's manifest definition with name 'BatchBuilder' does not match the assembly reference.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.IO.FileLoadException: The located assembly's manifest definition with name 'BatchBuilder' does not match the assembly reference.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Assembly Load Trace: The following information can be helpful to determine why the assembly 'BatchBuilder' could not be loaded.


=== Pre-bind state information ===
LOG: DisplayName = BatchBuilder, Version=1.0.1551.24814, Culture=neutral, PublicKeyToken=4f1090a2e0d97eff
(Fully-specified)
LOG: Appbase = file:///c:/inetpub/introot/UdexTransferWS
LOG: Initial PrivatePath = bin
Calling assembly : (Unknown).
===

LOG: Publisher policy file is not found.
LOG: No redirect found in host configuration file (c:\WINNT\Microsoft.NET\Framework\v1.1.4322\aspnet.config).
LOG: Using machine configuration file from c:\WINNT\Microsoft.NET\Framework\v1.1.4322\config\machine.config.
LOG: Post-policy reference: BatchBuilder, Version=1.0.1551.24814, Culture=neutral, PublicKeyToken=4f1090a2e0d97eff
LOG: Attempting download of new URL file:///c:/WINNT/Microsoft.NET/Framework/v1.1.4322/Temporary ASP.NET Files/udextransferws/88e8f994/b8fa9ea1/BatchBuilder.DLL.
LOG: Attempting download of new URL file:///c:/WINNT/Microsoft.NET/Framework/v1.1.4322/Temporary ASP.NET Files/udextransferws/88e8f994/b8fa9ea1/BatchBuilder/BatchBuilder.DLL.
LOG: Attempting download of new URL file:///c:/inetpub/introot/UdexTransferWS/bin/BatchBuilder.DLL.
WRN: Comparing the assembly name resulted in the mismatch: Revision Number

The f**king annoying thing is that the dll version is not part of the web site, not part of the web service, and not in the gac.

i assume that this was a previous version that has since been superceded. But i have no idea why my web service is trying to find this specific version. there is a nice new version in the gac, my ws references a nice new version locally, so i don't see how my ws when deployed suddenyl goes, (**** this i want an old version that doesn't exist).

having said that i've searched the servers hard drives for instances of this dll and under the: C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\Temporary ASP.NET Files\

folders there is a strange folder that contains a BatchBuilder dll with the offending version number. Is this dll in its funny location interfering with my ws. if so what can i do about it?

Any help on this would be greatly appreciated as this is really statring to piss me off.

if you compile your webservice locally against BatchBuilder.dll with version 1.0.1551.24814, and then on dev against 1.0.1551.24814, then it should work in production so long as version 1.0.1551.24814 exists in production, if not it'll bomb. It won't use the latest version or anything. Does the same version of BatchBuilder.dll that works locally and in dev exist in production?