Has there been any resolution to this problem? I am running into a similar (exact?) situation while trying to migrate some geoprocessing services based on custom DLL's from 10.05 to 10.2.2. I'm getting the invalid tool message for everything I publish. I even took the sample 'Calculate Area' VB code and compiled it as per the instructions (any CPU, registered it with 32bit and 64bit esriregasm.exe, etc.) and it works fine in ArcCatalog 10.2.2 and publishes fine to ArcGIS Server 10.2.2 but when the task is run, the 816 error is always returned. No other messages of any value are to be found anywhere. I was able to open the .rtl file (mentioned in previous post) and rerun it successfully.
Is there a problem with trying to use custom DLL's on AGS 10.2.x 64bit? Any thoughts on where to look would be appreciated.
Hi, Peter
have you fixed the problem? I am stuck with the same problem. so frustrated....