mstask.dll
Task Scheduler interface DLL by Microsoft
This is a Windows system installed file with Windows File Protection (WFP) enabled.
Overview
mstask.dll has 22 known versions, the most recent one is 5.2.3790.3959 (srv03_sp2_rtm.070216-1710). The average file size is about 299.07 KB. 
What is mstask.dll?
A Task Scheduler engine performs the actions scheduled through the Task Scheduler. A Task Scheduler engine communicates with the Task Scheduler service to execute tasks. The service creates a task engine to run tasks. 
About mstask.dll (from Microsoft)
“A task engine starts when a task is run for a specified principal (the security context the task runs under). The Task Scheduler engine manages a queue of tasks that are scheduled to run. A task is pu”
|  Details
 | 
| File name: | mstask.dll | 
| Publisher: | Microsoft Corporation | 
| Product name: | Task Scheduler interface DLL | 
| Description: | Microsoft® Windows® Operating System | 
| Typical file path: | C:\Windows\System32\mstask.dll | 
 Behaviors
Behaviors
(Note, the behaviors below are for all versions of mstask.dll, select a unique version for details.)
Approved shell extensions
Located in the registry at 'SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions\Approved'
- 'Tareas programadas' with CLSID {D6277990-4C6A-11CF-8D87-00AA0060F5BF}
- 'Tasks Folder Shell Extension' with CLSID {797F1E90-9EDD-11cf-8D8E-00AA0060F5BF}
- 'Tasks Folder Icon Handler' with CLSID {DD2110F0-9EEF-11cf-8D8E-00AA0060F5BF}
 All file variations of mstask.dll
All file variations of mstask.dll
 Distribution by Windows OS
Distribution by Windows OS
| OS version | distribution | 
| Microsoft Windows XP | 100.00% |  | 
 Distribution by country
Distribution by country
United States installs about 47.27% of Task Scheduler interface DLL.
 Distribution by PC manufacturer
Distribution by PC manufacturer
| PC Manufacturer | distribution | 
| Dell | 37.74% |  | 
| Intel | 14.40% |  | 
| Toshiba | 8.17% |  | 
| Compaq | 8.17% |  | 
| American Megatrends | 6.81% |  | 
| Hewlett-Packard | 5.84% |  | 
| GIGABYTE | 5.45% |  | 
| Sahara | 3.50% |  | 
| ASUS | 3.50% |  | 
| Gateway | 2.33% |  | 
| Acer | 1.75% |  | 
| Lenovo | 1.17% |  | 
| Sony | 1.17% |  |