diff --git a/ChangeLog b/ChangeLog
index e95b0b8..35ce765 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+akvirtualcamera 9.1.0:
+
+- Added -f, --force flags to the manager, this bypass the virtual camera usage
+  check.
+
 akvirtualcamera 9.0.0:
 
 - Code forked from Webcamoid. This virtual camera isn't compatible with
diff --git a/Manager/src/cmdparser.cpp b/Manager/src/cmdparser.cpp
index 30d5634..6127196 100644
--- a/Manager/src/cmdparser.cpp
+++ b/Manager/src/cmdparser.cpp
@@ -80,6 +80,7 @@ namespace AkVCam {
             std::vector<CmdParserCommand> m_commands;
             IpcBridge m_ipcBridge;
             bool m_parseable {false};
+            bool m_force {false};
 
             static const std::map<ControlType, std::string> &typeStrMap();
             std::string basename(const std::string &path);
@@ -184,6 +185,9 @@ AkVCam::CmdParser::CmdParser()
     this->addFlags("",
                    {"-p", "--parseable"},
                    "Show parseable output.");
+    this->addFlags("",
+                   {"-f", "--force"},
+                   "Force command.");
     this->addCommand("devices",
                      "",
                      "List devices.",
@@ -430,7 +434,7 @@ int AkVCam::CmdParser::parse(int argc, char **argv)
         }
     }
 
-    if (this->d->m_ipcBridge.isBusyFor(command->command)) {
+    if (!this->d->m_force && this->d->m_ipcBridge.isBusyFor(command->command)) {
         std::cerr << "This operation is not permitted." << std::endl;
         std::cerr << "The virtual camera is in use. Stop or close the virtual "
                   << "camera clients and try again." << std::endl;
@@ -791,6 +795,9 @@ int AkVCam::CmdParserPrivate::defaultHandler(const StringMap &flags,
     if (this->containsFlag(flags, "", "-p"))
         this->m_parseable = true;
 
+    if (this->containsFlag(flags, "", "-f"))
+        this->m_force = true;
+
     return 0;
 }
 
diff --git a/appveyor.yml b/appveyor.yml
index cf993ee..e927498 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,4 +1,4 @@
-version: 9.0.0.{build}-{branch}
+version: 9.1.0.{build}-{branch}
 os: MinGW
 
 image: Visual Studio 2019
diff --git a/commons.cmake b/commons.cmake
index 334bf68..2d04e78 100644
--- a/commons.cmake
+++ b/commons.cmake
@@ -28,7 +28,7 @@ set(COMMONS_APPNAME AkVirtualCamera)
 string(TOLOWER ${COMMONS_APPNAME} COMMONS_TARGET)
 
 set(VER_MAJ 9)
-set(VER_MIN 0)
+set(VER_MIN 1)
 set(VER_PAT 0)
 set(VERSION ${VER_MAJ}.${VER_MIN}.${VER_PAT})
 set(DAILY_BUILD OFF CACHE BOOL "Mark this as a daily build")