rundll32.exe is a application which is most likely NOT a virus or malware. So, if rundll32.exe is on your laptop or desktop computer, it is most likely ok, and will NOT cause problems. Even if your PC is virus-free, it is still recommended to use a good antivirus with a good track record, in order to defend your system against potential security problems.
This application is usually stored in C:\Windows\System32\rundll32.exe.
The MD5 fingerprint for this program is 4b555106290bd117334e9a08761c035a.
This application is NOT registered as a Windows service. This is very good.
rundll32.exe seems to use the functions of Windows SFC (System File Checker) or Windows File Protection.
This program runs in 32-bit mode. It can not exploit the entire set of features of current PC CPUs. This is quite normal because the authors did not upgrade it to 64-bit code.
The description stored in the file is Windows host process (Rundll32).
File version stored as a property 6.0.6000.16386 (vista_rtm.061101-2205).
Company Microsoft Corporation.
Intellectual property rights notice © Microsoft Corporation. All rights reserved..
rundll32.exe appears to have visible windows. This is good because it doesn't work in some kind of invisible mode. Its activity is clearly displayed to the user.
rundll32.exe has a digital signature. Today the large majority of virus-free programs are digitally signed.
The digital signature extracted from rundll32.exe checks out perfectly. This is very good.
Digitally signed by: Microsoft Windows
Certificate's issuer name: Microsoft Windows Verification PCA
This application does NOT have an uninstall command set up in registry.