Ok so I have a custom action, I need to pass command line arguments to it.

The command line arguments contain Double Quotes, but Double Quotes are used to define the CustomActionData boundries.

How would I send through a string like so:

"/c "some data" /b "some other data""

?

After doing some tests this morning you use \ just as you would in c#.

i.e. "this is a \"string with double quotes\" value"

HOpefully this will help anyone else looking on how to do this.

Not sure exactly what you're trying to do here. If you really want command line arguments for passing to an executable custom action, just put them in the Arguments property, pretty much whatever you like, and forget CustomActionData.

If you're calling an installer class method the syntax is /arg=value /arg1=value1 and you don't really need quotes because the delimiter is the /.

When assigning a property to pass through if the value contains spaces you need to have it enclosed in double quotes.

i.e. /arg="this is a value"

I want to have double quotes in this value as well.

i.e. /arg="this is a "string with double quotes" value"

In C# you'd escape the double quotes either byusing \

i.e. "this is a \"string with double quotes\" value"

Theres nothing in the documentation to say what you should use with properties being sent to CustomActionData, they just say use double quotes if you have spaces.

After doing some tests this morning you use \ just as you would in c#.

i.e. "this is a \"string with double quotes\" value"

HOpefully this will help anyone else looking on how to do this.