Download and Fix rmcast.sys

Sometimes Windows system displays error messages regarding corrupted or missing rmcast.sys files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent rmcast.sys file can therefore effect in failed execution of the started process.

rmcast.sys file Reliable Multicast Transport. The file was developed by for use with software. Here you will find detailed information about the file and instructions how to proceed in the event of rmcast.sys related errors on your device. You can also download rmcast.sys file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows XP devices which will (most probably) allow you to solve the problem.

Compatible with: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows XP

User popularity

3.1 Scanning for malicious software
3.2 System and driver update
3.3 System File Checker tool
3.4 System recovery

4 Download rmcast.sys

4.1 List of rmcast.sys file versions

File info

General information
Filename	rmcast.sys
File extension	SYS
Description	Reliable Multicast Transport

Software
Program	Microsoft® Windows® Operating System
Author	Microsoft Corporation

Details
MIME type	application/octet-stream
File type	Driver
System	Windows NT 32-bit
Copyrights	© Microsoft Corporation. All rights reserved.
Character set	Unicode
Language cod	English (U.S.)

Most common rmcast.sys file related problems

There are various types of errors related to rmcast.sys file. rmcast.sys file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to rmcast.sys file. If you encounter one listed below (or similar), please consider the following suggestions.

rmcast.sys is corrupted
rmcast.sys cannot be located
Runtime Error - rmcast.sys
rmcast.sys file error
rmcast.sys file cannot be loaded. Module was not found
cannot register rmcast.sys file:
rmcast.sys file could not be loaded
rmcast.sys file doesn't exist

rmcast.sys

Application could not be started because rmcast.sys file is missing. Reinstall the application to solve the problem.

Problems related to rmcast.sys can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing rmcast.sys file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

How to fix rmcast.sys errors in just few steps?

Remember, before taking any action related to system files perform a backup copy of your data!

rmcast.sys file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with rmcast.sys file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Installing relevant Microsoft Windows patches and updates may solve your problems related to rmcast.sys file. Use dedicated Windows tool to perform the update.

Go to the Windows "Start" menu
Type "Windows Update" in the search field
Choose the appropriate software program (name may vary depending on your system version)
Check if your system is up to date. If any unapplied updates are listed, install them immediately.
After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of rmcast.sys or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to rmcast.sys file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the rmcast.sys file with properly working version. To use the tool:

Go to the Windows "Start" menu
Type "cmd" in the search field
Locate "Command Prompt" result – don't run it yet:
Click the right mouse button and select "Run as Administrator" option
Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Another approach is to restore system to previous state, before the rmcast.sys file error occured. In order to restore your system, follow the instructions below

Go to the Windows "Start" menu
Type "System Restore" in the search field
Start the system restore tool – it's name may differ depending on version of the system
The application will guide you through the process – read the messages carefully
After the process has finished, restart your computer.

If all the above-mentioned methods failed and the rmcast.sys file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace rmcast.sys file

The last solution is to manually download and replace rmcast.sys file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded rmcast.sys file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of rmcast.sys file example directory paths.

Windows 10: C:\Windows\System32\drivers\
Windows 8.1: C:\Windows\System32\drivers\
Windows 8: 1: C:\Windows\System32\drivers\
Windows 7: C:\Windows\System32\drivers\
Windows Vista: C:\Windows\System32\drivers\
Windows XP: ---

If the steps did not solve your rmcast.sys file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename rmcast.sys

System Windows 10

File size 120832 bytes

Date 2017-03-18

Download

File details
	MD5	eaa34925a59f248adcb9e9e6ef99de41
	SHA1	cf011c6730e67b17134502915fc121217f2945b2
	SHA256	967ba490179a824d28f4cbb5e33769bb1d98cd73a67b7152139f8483ff80e478
	CRC32	b1ba9287
	Example file location	C:\Windows\System32\drivers\

Filename rmcast.sys

System Windows 8.1

File size 121856 bytes

Date 2014-11-21

Download

File details
	MD5	fe563132b43cf730fb25bf2bc357b519
	SHA1	6af823d39f1f08ad9ab83580cf22daad97e7d184
	SHA256	20b8b837f933283d8b322b6c51016dec8c16bfe9678a96dda3868756043652b2
	CRC32	96e2fa49
	Example file location	C:\Windows\System32\drivers\

Filename rmcast.sys

System Windows 8

File size 122880 bytes

Date 2012-07-26

Download

File details
	MD5	5d57fe34bb713e0b4a0f63d60d57ba92
	SHA1	710a234c220e5cd61324bc043b9716e9ab416572
	SHA256	ec5b968aa3694955fed08b5d460469177d29e0621231d1c1a2ce60b6cdce4683
	CRC32	e5843563
	Example file location	1: C:\Windows\System32\drivers\

Filename rmcast.sys

System Windows 7

File size 146432 bytes

Date 2010-11-21

Download

File details
	MD5	caf88d6573d21cd2aa27001ddbfdc74d
	SHA1	cd965fd37000f059a24947f9db9d2c55a6c2fa1c
	SHA256	8256b93e586953f1b594bffa1f005db08325caf1729a93820b09f60daa998c97
	CRC32	b0cd2ef0
	Example file location	C:\Windows\System32\drivers\

Filename rmcast.sys

System Windows Vista

File size 140288 bytes

Date 2009-04-11

Download

File details
	MD5	f913517bb2f3a73ec6b9b65e5dc7b420
	SHA1	3a420ba13d0b9a3e14e764c7f1cf1dcda8a2a081
	SHA256	b7c0e26e20ad157225c76d20f753f87e831bb548620c4f9bd42ca95ddb7b45b4
	CRC32	ed00b5f0
	Example file location	C:\Windows\System32\drivers\

Filename rmcast.sys

System Windows XP

File size 202624 bytes

Date 2008-04-14

Download

File details
	MD5	ecff394d65671efde5a872eb9ef4f2d5
	SHA1	3ea99a617fd3a25687f4672c7bb973717f4d38e0
	SHA256	638e44604bb9919a98a3f9d2608e098836c732355c793619fc7695020127f462
	CRC32	e4d09a5b
	Example file location	---