How can you disabled the Server 2008 "Application hung" screen?

we have old legacy app used on terminal services, , hosted on server 2003.  now we've migrated server 2008 r2 , because it's old app, has no progress bar or similar when it's doing things , on server 2003 sit there until it's finished.  with server 2008 however, after few seconds displays white, translucent "application hung" screen , prompting terminate or wait, causing problems because users think it's crashed whereas thought slow.  can disable white hang screen , go how pre-2008?

hi,

how windows detect application hang:

when application (or more accurately, thread) creates window on desktop, enters implicit contract desktop window manager (dwm) process window messages in timely fashion. dwm posts messages (keyboard/mouse input , messages other windows, itself) thread-specific message queue. thread retrieves , dispatches messages via message queue. if thread not service queue calling getmessage(), messages not processed, , window hangs: can neither redraw nor can accept input user. operating system detects state attaching timer pending messages in message queue. if message has not been retrieved within 5 seconds, dwm declares window hung. can query particular window state via ishungappwindow() api.

in research, i cannot find information how disable feature or how customize 5 seconds ttl. afraid cannot disable default behavior how windows handles application hang.

preventing hangs in windows applications

http://msdn.microsoft.com/en-us/library/dd744765(vs.85).aspx

 

 

 

 

 

 

 

 

 

 

 

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