I had a number of custom actions in an installer that I upgraded to 10.1.
These custom actions often are the "viewer.exe" style ones where I use cmd.exe or appcmd or something similar.
So I'd have to quote parameters that I'd insert for something like cmd "[PARAMETER1]" to handle spaces in the paramater.
For example, I might have something that uses cmd.exe to move files around: /q /c rmdir /s /q "[Staging_Dir]"
If I look at that custom action in 10.1, it strips off the quotes from the parameter as soon as I look at another custom action.
The only way I can keep the quotes on there is add a space, so "[Staging_Dir] ".
This works OK for some commands, but some commands require the exact string, without padding it with a space.
Any ideas? The new look for custom actions editing is nice, but this a major issue for me to have to suddenly workaround in 10.1.