Recently, I heard a few people complaining that they are not able to enter information in the forms on IE 7. I did a search and found some of the DLLs might suddenly be missing from the registry. The fix is as follow:
To resolve this issue, re-register the DLL files that are related to Internet Explorer. To do this, follow these steps:
Click Start, and then click Run
Type regsvr32 urlmon.dll in the Open box, and then click OK.
Click OK when you receive the following message:
DllRegisterServer in urlmon.dll succeeded
Repeat steps 1 through 3 for the rest of the DLL files by replacing the regsvr32 urlmon.dll command in the Open box with the following commands: