R/3 System on Windows NT: Problem Analysis 
Use
If problems occur when the R/3 System is started or stopped, you have a number of analysis options.
Procedure
You can start the
MMC and use the available features for system analysis to find out the problem. Alternatively, try the following:To do this, go to the window Services (Control Panel
The files can also be accessed from the MMC. To do this, select the instance involved and from the context menu choose Task ® View Developer Traces.