When you need to investigate possible causes of errors, we recommend that you start by checking whether and how the TPMULTICONTEXTS flag has been set. Errors are frequently introduced by failures to set this flag or to set it properly.

• Improper Use of the TPMULTICONTEXTS Flag to tpinit( )
  
• Calls to tpinit( ) Without TPMULTICONTEXTS
  
• Insufficient Thread Stack Size