Table of Contents


When you try to open Active Directory Users and Computers tool you see the following error:

Microsoft Visual C++ Runtime Library error; "The Application has requested the runtime to terminate it in a unusual way. Please contact the application's support team for more information"

If you click OK, you see the following debugging information:  

Problem signature:
Problem Event Name: APPCRASH
Application Name: mmc.exe
Application Version: 6.0.6001.18000
Application Timestamp: 47919524
Fault Module Name: msvcrt.dll
Fault Module Version: 7.0.6001.18000
Fault Module Timestamp: 4791ad6b
Exception Code: 40000015
Exception Offset: 0000000000029b06
OS Version: 6.0.6001.
Locale ID: 3081
Additional Information 1: 43aa
Additional Information 2: cf3a46656318492c1997480001b6b0e0
Additional Information 3: 3837
Additional Information 4: 92f72e0d0589ff77cef51e0a413aeff6
Read our privacy statement:


1. Open Active Directory Sites and Services (dssite.msc)
2. Click File, click Options, and then click Disk Cleanup
3. Click Delete Files 

This TechNet Wiki article was inspired by the following Directory Services forum post: Cannot run Active Directory Users and Computers