Testing with IW http.sys freezes Windows

[Joao Lira]

Hello,

  I am testing IW with "http.sys" as a server, and for this, I converted an Indy IW server functional application to 'http.sys' according to this page. The application compiles ok, I set it to run as administrative local, it shows up normally, but when I open a web page with any browser in the application page it loads nothing and after a few seconds it freezes Windows 10 completely. After a while, it goes to Windows 10 blue screen and shows as stopping code "DPC_WATCHDOG_VIOLATION". 

  I thought it could be something not properly set in my application, so I try running the 'HttpSysDemo' application too, but it behaves the same way, freezing the computer after a few seconds.

  I tried disabling the antivirus too but to no avail. I tried the conversion using the latest IW version.

  What could cause this problem?


  Regards,
  Joao Lira.

[SorenJensen]

Hi Joao Lira,

I experienced something similar the first times I tried my HTTP.SYS application. My application used a ado dbcoonnection and adoquery to retrieve data from a sql database on a sql server.

My problem was solved when I created a username with which the application could logon on as a service (service start logon) AND I allowed the same user to access the database.

Local system was not sufficient, even though the windows logged-on user was admin.

Regards
Soren

[Joao Lira]

Hello Soren,

I'll try your suggestion, thank you!

Regards,
Joao Lira.

[Alexandre Machado]

Are you sure your machine is OK? I've tested uncountable Http.sys applications on several machines, physical and virtual. Not a single issue like that.