Channel 9 Forums - Tech Off - .Net dll built for COM, target machine fails http://mschnlnine.vo.llnwd.net/d1/Dev/App_Themes/C9/images/feedimage.png Channel 9 Forums - Tech Off - .Net dll built for COM, target machine fails http://channel9.msdn.com/Forums Channel 9 keeps you up to date with the latest news and behind the scenes info from Microsoft that developers love to keep up with. From LINQ to SilverLight – Watch videos and hear about all the cool technologies coming and the people behind them. http://channel9.msdn.com/Forums en Sat, 25 May 2013 19:57:56 GMT Sat, 25 May 2013 19:57:56 GMT Rev9 4 -4 -1 Tech Off - .Net dll built for COM, target machine fails I have a C# dll built for COM and its all fine for my machine. I have a sample vm setup running just XP, .net 1.1 and 2.0 to serve as a test target machine.

My legacy application is file-server(exe sits on network) and this cannot change. Doing things the right way I install my dll(and interop.xxx files) to C:\Docs and Settings\whatever\App Data\CompanyName\

Now I know I need to get the class into the GAC so that my legacy app can see it over COM. I couldn't do this straight up as the gacutil isnt part of the .net runtime(so the target machine doesnt have it). I wrote a little installer/uninstaller exe which does this using System.EnterpriseServices.Internal.Publish.gacInstall().

I made sure my dll was strongly typed via the .net command prompt doing sn -k whatever.snk and adding that to the project as the key file.

Ok, I can browse to C:\Windows\Assembly and see my class there but my legacy app still fails when creating the object on the target machine...

What gives? Sad

]]> http://channel9.msdn.com/Forums/TechOff/260936-Net-dll-built-for-COM-target-machine-fails/260936#260936 Tue, 12 Feb 2008 21:06:28 GMT http://channel9.msdn.com/Forums/TechOff/260936-Net-dll-built-for-COM-target-machine-fails/260936#260936 KeyboardG 4 http://channel9.msdn.com/Niners/Dark_Halmut/Discussions/RSS Tech Off - .Net dll built for COM, target machine fails So I got it to work by cd'ing to the .net 2 directory and doing

regasm "my full path to my dll\my.dll" /codebase

 

Is there a downside to this? There seems to be conflicting notation/articles out there on both of these methods.

]]> http://channel9.msdn.com/Forums/TechOff/260936-Net-dll-built-for-COM-target-machine-fails/9635ea54b17942ea848b9dfa00beff63#9635ea54b17942ea848b9dfa00beff63 Tue, 12 Feb 2008 22:24:01 GMT http://channel9.msdn.com/Forums/TechOff/260936-Net-dll-built-for-COM-target-machine-fails/9635ea54b17942ea848b9dfa00beff63#9635ea54b17942ea848b9dfa00beff63 KeyboardG 4 http://channel9.msdn.com/Niners/Dark_Halmut/Discussions/RSS Tech Off - .Net dll built for COM, target machine fails
Dark_Halmut wrote:


So I got it to work by cd'ing to the .net 2 directory and doing

regasm "my full path to my dll\my.dll" /codebase

 

Is there a downside to this? There seems to be conflicting notation/articles out there on both of these methods.



Depends on what you are trying to do. Is you com app and c# dll in the same directory? If so use regasm with tlb option
regasm <full path>.dll /tlb:<fullpath>.tlb.
 
Don't use code base if you are going to install it in gac. More information here

http://msdn2.microsoft.com/en-us/library/tzat5yw6(VS.71).aspx">http://msdn2.microsoft.com/en-us/library/tzat5yw6(VS.71).aspx

]]> http://channel9.msdn.com/Forums/TechOff/260936-Net-dll-built-for-COM-target-machine-fails/52c93cce5d1443d383a69dfa00beffa3#52c93cce5d1443d383a69dfa00beffa3 Wed, 13 Feb 2008 01:44:16 GMT http://channel9.msdn.com/Forums/TechOff/260936-Net-dll-built-for-COM-target-machine-fails/52c93cce5d1443d383a69dfa00beffa3#52c93cce5d1443d383a69dfa00beffa3 anand042008 4 http://channel9.msdn.com/Niners/anand042008/Discussions/RSS Tech Off - .Net dll built for COM, target machine fails Thanks, I had found some stuff online that also said don't put the assembly into the gac if you plan on using it for COM. The multiple ways is a bit cloudy/confusing.

Unfornately the legacy app using the dll sits on a network share(file-server app) but the new C# dll will sit on each users WinDisk\Docs and Setting\All Users\App Data\App Folder\

]]> http://channel9.msdn.com/Forums/TechOff/260936-Net-dll-built-for-COM-target-machine-fails/21ade318ec0845e885ce9dfa00bf0025#21ade318ec0845e885ce9dfa00bf0025 Thu, 14 Feb 2008 01:41:22 GMT http://channel9.msdn.com/Forums/TechOff/260936-Net-dll-built-for-COM-target-machine-fails/21ade318ec0845e885ce9dfa00bf0025#21ade318ec0845e885ce9dfa00bf0025 KeyboardG 4 http://channel9.msdn.com/Niners/Dark_Halmut/Discussions/RSS