I have a business application that I wrote that CONSISTENTLY gives me an error when I try to install it on a users PC. The installation fails and the error I get is that the installation routine couldn't find the file "Infragistics2.Win.UltraWinCalcManager.v9.1.FormulaBuilder.dll.deploy" in the "...Application Files\MyApp_1_0_0_0" folder. The file is actually there but it is named "Infragistics2.Win.UltraWinCalcManager.v9.1.FormulaBuilder.deploy". i.e. the ".dll" part is missing. I believe I've looked and the file IS correctly named on my development machine but, apparently, when I run the MS Visual Studio Publish process to create the application deployment files it gets renamed. I'm guessing that's what happens. Anyway, to get the installation to work I have to rename the file and add the ".dll" into the name.
I thought you should be aware of this issue and that maybe it's some Infragistics routine that is being run during the Publish process that is messed up. Whether it's Infragistics or Microsofts problem, it would be nice to get it fixed.
One thing you can do is shorten the path length, either by reducing the length of the assembly name (under Application/Assembly name" or you could uncheck the 'Use ".deploy" file extension' checkbox (under Publish/Options). I haven't found a better solution.