You cannot trace in a typical manner, as there is no GUI for the
global.asax.
There are two ways I can imagine it working:
1. add a trace listener to the application (in global.asax) and use it to
pull the global.asax trace information where you can visit it.
2. Visit the trace.axd file. Not sure if this works on global.asax, however.

Signature
Gregory A. Beamer
MVP; MCP: +I, SE, SD, DBA
http://gregorybeamer.spaces.live.com
Co-author: Microsoft Expression Web Bible (upcoming)
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Think outside the box!
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> Hi all,
>
> After setting trace for asp.net application. I get trace information
> for every page, but no trace information for global.asax. Anyone know
> how to trace the global.asax file? Thanks.