Date:2013-03-15
Safety:Kaspersky McAfee Noton BitDefender AVG

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Unimodem Service Provider 16-to-32 bit thunk layer

·Go to the download page

Using the zip or rar file
1.Download umdm32.dll 4.90.0.3000
2.Extract umdm32.dll 4.90.0.3000 from .zip. We recommend that you extract umdm32.dll 4.90.0.3000 to the installation directory of the program that is requesting umdm32.dll 4.90.0.3000.
3.If that doesn't work, you will have to extract umdm32.dll 4.90.0.3000 to your system directory. By default, this is:
C:\Windows\System32 (Windows XP, Vista, 7, 8)
C:\WINNT\System32 (Windows NT/2000)
C:\Windows\System (Windows 95/98/Me)
4.If you use a 64-bit version of Windows, you should also place umdm32.dll 4.90.0.3000 in C:\Windows\SysWOW64\
5.Make sure overwrite any existing files (but make a backup copy of the original file).
6.Reboot your computer.
7.If the problem still occurs, try the following:
8.Open Windows Start menu and select "Run...".
9.Type CMD and press Enter (or if you use Windows ME, type COMMAND)).
10.Type regsvr32 umdm32.dll 4.90.0.3000 and press Enter.