How important is COM knowledge when going for an asp.NET job ?

Most companies will want to be rewritig their COM in .NET, and NOT
importing/interoperating with it.
Thus, it could be suggested, that .NET is way more important.

I would suggest that not much more than superficial COM knowledge is needed
as all you need to use the COM code for really is a spec - it's all going to
get rewritten in full.

Am I right or wrong ?