Debugging asp.net 1.1 edit and continue?

The following link describes a technique for edit and continue in 1.1. 

While I haven't used the "src" attribute personally, I have been using the "attach to process" approach for some time. Rather than "F5", I load the website normally by accessing its url, then I use: debug > processes. Check the "Show System Processes" check box, attach to aspnet_wp or w3wp (the latter is server 2003) process, choose "Common Language Runtime" on the next dialog, and your ready to go!

The funny thing, and I mean funny-weird not funny-ha-ha, is that I can sometimes rebuild without detaching or stopping the debugger. It's weird because I can't seem to find any pattern. Sometimes the debugger insists on detaching. Sometimes it won't. Sometime you feel like a nut, sometimes you

I like it when it doesn't detach. It saves 10 mouse gestures and about a half a minute. I have tried to record a macro to attach to the w3wp but that hasn't worked out quite yet. I have never been a macro maniac. So far, I can get the macro to launch the "attach to process" dialog. Then I scroll down, select w3wp, and I'm off. Close. Nice! WAY better then F5

I thought I'd share in hopes that some people could also enjoy the time savings of using "attach to process". If anyone knows what the mystery factor is that causes the debugger to sometimes allow rebuild without detaching and sometimes not, please shoot me a message or leave a comment! I'd so appreciate it.