Lost or broken RunDLL32 executable? Here is how to replace them: Windows 95 / 98 / 98SE 
Download for the version of Windows needed and unzip it into the folder it needs to go for your Windows version.Windows ME
Download the copy for your Windows version and unzip it first into the folder
C:\WINDOWS\Options\cabs (overwriting any existing copy), then into the folder it needs to go for your Windows version.
To see what Windows version you have, right-click the 'My Computer' icon on the desktop and click 'Properties'.
Windows NT4 / 2000 / 2003
Download the copy for your Windows version and unzip it first into the folder
C:\WINNT\System32\dllcache (overwriting any existing copy), then into the folder it needs to go for your Windows version.
To see what Windows version you have, right-click the 'My Computer' icon on the desktop and click 'Properties'.
Windows XP SP1 / SP2
Download the copy for your Windows version and unzip it first into the folder
C:\WINDOWS\System32\dllcache (overwriting any existing copy), then into the folder it needs to go for your Windows version.
To see what Windows version you have, right-click the 'My Computer' icon on the desktop and click 'Properties'.
Windows Vista
Download the copy for your Windows version. To see what Windows version you have, right-click the 'My Computer' icon on the desktop and click 'Properties'.
Specific Version Information:
| OS |
File Version |
OS |
File Version |
OS |
File Version |
| Win 95 |
4.0.0.950 |
Win 98 / SE |
4.10.0.1998 |
Win ME |
4.90.0.3000 |
| Win NT4 |
4.0.1371.1 |
Win 2000 |
5.0.2134.1 |
Win 2003 |
5.2.3790.0 |
| Win XP SP1 |
5.1.2600.0 |
Win XP SP2 |
5.1.2600.2180 |
Win Vista |
6.0.6000.16386 |
| 
