Jitu
asked on
NT Service ?
How do i write a program that runs as a NT Service ?
Basically i want to achieve this :
I want to invoke a carry out a certain activity (liking invoking a certain application) based on time. That is, i schedule some activities for some time in future. Now, my appln. should continuosly check for time and if it is time to carry out that activity, simply do that, and continue running.
I guess, i must write a program that runs in background as a Service. But, should not be too heavy weight or hog resources.
What language has to be used...VC++ ?
How do i do this ?
Any available code ...
or info. on where i can find help on this would be helpful.
Thx.
Basically i want to achieve this :
I want to invoke a carry out a certain activity (liking invoking a certain application) based on time. That is, i schedule some activities for some time in future. Now, my appln. should continuosly check for time and if it is time to carry out that activity, simply do that, and continue running.
I guess, i must write a program that runs in background as a Service. But, should not be too heavy weight or hog resources.
What language has to be used...VC++ ?
How do i do this ?
Any available code ...
or info. on where i can find help on this would be helpful.
Thx.
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The information about what is already scheduled can be obtained from the registry. Look at
HKEY_LOCAL_MACHINE\system\
You should be able to obtain the information you need from the sub keys to tell about the scheduled tasks. Then you can manipulate the registry, or use the AT command (/delete etc) with a winexec to manipulate it for you.
HKEY_LOCAL_MACHINE\system\
You should be able to obtain the information you need from the sub keys to tell about the scheduled tasks. Then you can manipulate the registry, or use the AT command (/delete etc) with a winexec to manipulate it for you.
ASKER
Thanks Francis. I am looking into this.
But, modifying Registry values like this from what i understand is actually dangerous and not recommended.
May be i could read from the registry and modify it using the AT /delete command. Cumbersome though.
So, i am thinking whether i shud write my own appln. which runs as a service and does the job for me or use the way suggested by u.
But, modifying Registry values like this from what i understand is actually dangerous and not recommended.
May be i could read from the registry and modify it using the AT /delete command. Cumbersome though.
So, i am thinking whether i shud write my own appln. which runs as a service and does the job for me or use the way suggested by u.
The other thing that you can do is take an EXE that you create and run the SRVINSTW.exe which you can find on the Windows NT Re3source kit. Te wizard will walk you through setting up a program as a service.
ASKER
But, is there a way, whereby i can access information about already scheduled tasks (How many etc...).
Or change or delete them thru my program ?