title: IIS System.OutOfMemoryException issue Web service
body: <p>We have an Asp.Net Web Service having </p>
  
  <blockquote>
    <p>System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.     at System.Threading.Thread.StartInternal(IPrincipal principal, StackCrawlMark&amp; stackMark)     at System.Threading.Thread.Start()</p>
  </blockquote>
  
  <p>We are refreshing app pool as a temporary fix. Issues seem re-occurs every 4-5 hours. 
  Web Service basically returns the data from Stored Procedure from SQL server DB. It is a legacy application haven't done any code change in years. Is it possible an application stable for years have any memory leak issue all of sudden?</p>