hongshaorou/rustdesk
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix/msi service (#7872)

Browse Source 
* refact: msi service, shell execute control

Signed-off-by: fufesou <shuanglongchen@yeah.net>

* fix: msi, skip adding rules when uninstalling

Signed-off-by: fufesou <shuanglongchen@yeah.net>

* line indentation

Signed-off-by: fufesou <shuanglongchen@yeah.net>

---------

Signed-off-by: fufesou <shuanglongchen@yeah.net>
This commit is contained in:
fufesou 2024-04-30 15:57:12 +08:00 committed by GitHub
parent a884e32816
commit 6cd107c3e3
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
3 changed files with 212 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

202
res/msi/CustomActions/CustomActions.cpp
View File

@ -66,7 +66,7 @@ UINT __stdcall RemoveInstallFolder(
} }
else else
{ {
WcaLog(LOGMSG_STANDARD, "The directory \"%ls\" has not been deleted, error code: 0X%02X. Please refer to https://learn.microsoft.com/en-us/windows/win32/api/shellapi/nf-shellapi-shfileoperationa for the error codes.", installFolder, nResult); WcaLog(LOGMSG_STANDARD, "The directory \"%ls\" has not been deleted, error code: 0x%02X. Please refer to https://learn.microsoft.com/en-us/windows/win32/api/shellapi/nf-shellapi-shfileoperationa for the error codes.", installFolder, nResult);
} }
LExit: LExit:
@ -222,13 +222,13 @@ void AddFirewallRuleCmdline(LPWSTR exeName, LPWSTR exeFile, LPCWSTR dir)
WCHAR rulename[500] = { 0, }; WCHAR rulename[500] = { 0, };
StringCchPrintfW(rulename, sizeof(rulename) / sizeof(rulename[0]), L"%ls Service", exeName); StringCchPrintfW(rulename, sizeof(rulename) / sizeof(rulename[0]), L"%ls Service", exeName);
if (hr < 0) { if (FAILED(hr)) {
WcaLog(LOGMSG_STANDARD, "Failed to make rulename: %ls", exeName); WcaLog(LOGMSG_STANDARD, "Failed to make rulename: %ls", exeName);
return; return;
} }
StringCchPrintfW(cmdline, sizeof(cmdline) / sizeof(cmdline[0]), L"advfirewall firewall add rule name=\"%ls\" dir=%ls action=allow program=\"%ls\" enable=yes", rulename, dir, exeFile); StringCchPrintfW(cmdline, sizeof(cmdline) / sizeof(cmdline[0]), L"advfirewall firewall add rule name=\"%ls\" dir=%ls action=allow program=\"%ls\" enable=yes", rulename, dir, exeFile);
if (hr < 0) { if (FAILED(hr)) {
WcaLog(LOGMSG_STANDARD, "Failed to make cmdline: %ls", exeName); WcaLog(LOGMSG_STANDARD, "Failed to make cmdline: %ls", exeName);
return; return;
} }
@ -252,13 +252,13 @@ void RemoveFirewallRuleCmdline(LPWSTR exeName)
WCHAR rulename[500] = { 0, }; WCHAR rulename[500] = { 0, };
StringCchPrintfW(rulename, sizeof(rulename) / sizeof(rulename[0]), L"%ls Service", exeName); StringCchPrintfW(rulename, sizeof(rulename) / sizeof(rulename[0]), L"%ls Service", exeName);
if (hr < 0) { if (FAILED(hr)) {
WcaLog(LOGMSG_STANDARD, "Failed to make rulename: %ls", exeName); WcaLog(LOGMSG_STANDARD, "Failed to make rulename: %ls", exeName);
return; return;
} }
StringCchPrintfW(cmdline, sizeof(cmdline) / sizeof(cmdline[0]), L"advfirewall firewall delete rule name=\"%ls\"", rulename); StringCchPrintfW(cmdline, sizeof(cmdline) / sizeof(cmdline[0]), L"advfirewall firewall delete rule name=\"%ls\"", rulename);
if (hr < 0) { if (FAILED(hr)) {
WcaLog(LOGMSG_STANDARD, "Failed to make cmdline: %ls", exeName); WcaLog(LOGMSG_STANDARD, "Failed to make cmdline: %ls", exeName);
return; return;
} }
@ -353,6 +353,7 @@ LExit:
return WcaFinalize(er); return WcaFinalize(er);
} }
void TryCreateStartServiceByShell(LPWSTR svcName, LPWSTR svcBinary, LPWSTR szSvcDisplayName);
UINT __stdcall CreateStartService(__in MSIHANDLE hInstall) UINT __stdcall CreateStartService(__in MSIHANDLE hInstall)
{ {
HRESULT hr = S_OK; HRESULT hr = S_OK;
@ -402,6 +403,14 @@ UINT __stdcall CreateStartService(__in MSIHANDLE hInstall)
WcaLog(LOGMSG_STANDARD, "Failed to create service: \"%ls\"", svcName); WcaLog(LOGMSG_STANDARD, "Failed to create service: \"%ls\"", svcName);
} }
if (IsServiceRunningW(svcName)) {
WcaLog(LOGMSG_STANDARD, "Service \"%ls\" is running.", svcName);
}
else {
WcaLog(LOGMSG_STANDARD, "Service \"%ls\" is not running, try create and start service by shell", svcName);
TryCreateStartServiceByShell(svcName, svcBinary, szSvcDisplayName);
}
LExit: LExit:
if (pwzData) { if (pwzData) {
ReleaseStr(pwzData); ReleaseStr(pwzData);
@ -411,6 +420,7 @@ LExit:
return WcaFinalize(er); return WcaFinalize(er);
} }
void TryStopDeleteServiceByShell(LPWSTR svcName);
UINT __stdcall TryStopDeleteService(__in MSIHANDLE hInstall) UINT __stdcall TryStopDeleteService(__in MSIHANDLE hInstall)
{ {
HRESULT hr = S_OK; HRESULT hr = S_OK;
@ -447,7 +457,7 @@ UINT __stdcall TryStopDeleteService(__in MSIHANDLE hInstall)
} }
} }
else { else {
WcaLog(LOGMSG_STANDARD, "Failed to stop service: \"%ls\", error: 0X%02X.", svcName, GetLastError()); WcaLog(LOGMSG_STANDARD, "Failed to stop service: \"%ls\", error: 0x%02X.", svcName, GetLastError());
} }
if (IsServiceRunningW(svcName)) { if (IsServiceRunningW(svcName)) {
@ -461,11 +471,12 @@ UINT __stdcall TryStopDeleteService(__in MSIHANDLE hInstall)
WcaLog(LOGMSG_STANDARD, "Service \"%ls\" deletion is completed without errors.", svcName); WcaLog(LOGMSG_STANDARD, "Service \"%ls\" deletion is completed without errors.", svcName);
} }
else { else {
WcaLog(LOGMSG_STANDARD, "Failed to delete service: \"%ls\", error: 0X%02X.", svcName, GetLastError()); WcaLog(LOGMSG_STANDARD, "Failed to delete service: \"%ls\", error: 0x%02X.", svcName, GetLastError());
} }
if (QueryServiceStatusExW(svcName, &svcStatus)) { if (QueryServiceStatusExW(svcName, &svcStatus)) {
WcaLog(LOGMSG_STANDARD, "Failed to delete service: \"%ls\", current status: %d.", svcName, svcStatus.dwCurrentState); WcaLog(LOGMSG_STANDARD, "Failed to delete service: \"%ls\", current status: %d.", svcName, svcStatus.dwCurrentState);
TryStopDeleteServiceByShell(svcName);
} }
else { else {
lastErrorCode = GetLastError(); lastErrorCode = GetLastError();
@ -473,7 +484,8 @@ UINT __stdcall TryStopDeleteService(__in MSIHANDLE hInstall)
WcaLog(LOGMSG_STANDARD, "Service \"%ls\" is deleted.", svcName); WcaLog(LOGMSG_STANDARD, "Service \"%ls\" is deleted.", svcName);
} }
else { else {
WcaLog(LOGMSG_STANDARD, "Failed to query service status: \"%ls\", error: 0X%02X.", svcName, lastErrorCode); WcaLog(LOGMSG_STANDARD, "Failed to query service status: \"%ls\", error: 0x%02X.", svcName, lastErrorCode);
TryStopDeleteServiceByShell(svcName);
} }
} }
@ -685,3 +697,177 @@ LExit:
er = SUCCEEDED(hr) ? ERROR_SUCCESS : ERROR_INSTALL_FAILURE; er = SUCCEEDED(hr) ? ERROR_SUCCESS : ERROR_INSTALL_FAILURE;
return WcaFinalize(er); return WcaFinalize(er);
} }
void TryCreateStartServiceByShell(LPWSTR svcName, LPWSTR svcBinary, LPWSTR szSvcDisplayName)
{
HRESULT hr = S_OK;
HINSTANCE hi = 0;
wchar_t szNewBin[500] = { 0 };
DWORD cchNewBin = sizeof(szNewBin) / sizeof(szNewBin[0]);
wchar_t szCmd[800] = { 0 };
DWORD cchCmd = sizeof(szCmd) / sizeof(szCmd[0]);
SERVICE_STATUS_PROCESS svcStatus;
DWORD lastErrorCode = 0;
int i = 0;
int j = 0;
WcaLog(LOGMSG_STANDARD, "TryCreateStartServiceByShell, service: %ls", svcName);
TryStopDeleteServiceByShell(svcName);
// Do not check the result here
i = 0;
j = 0;
// svcBinary is a string with double quotes, we need to escape it for shell arguments.
// It is orignal used for `CreateServiceW`.
// eg. "C:\Program Files\MyApp\MyApp.exe" --service -> \"C:\Program Files\MyApp\MyApp.exe\" --service
while (true) {
if (svcBinary[j] == L'"') {
szNewBin[i] = L'\\';
i += 1;
if (i >= cchNewBin) {
WcaLog(LOGMSG_STANDARD, "Failed to copy bin for service: %ls, buffer is not enough", svcName);
return;
}
szNewBin[i] = L'"';
}
else {
szNewBin[i] = svcBinary[j];
}
if (svcBinary[j] == L'\0') {
break;
}
i += 1;
j += 1;
if (i >= cchNewBin) {
WcaLog(LOGMSG_STANDARD, "Failed to copy bin for service: %ls, buffer is not enough", svcName);
return;
}
}
hr = StringCchPrintfW(szCmd, cchCmd, L"create %ls binpath= \"%ls\" start= auto DisplayName= \"%ls\"", svcName, szNewBin, szSvcDisplayName);
if (FAILED(hr)) {
WcaLog(LOGMSG_STANDARD, "Failed to make command: %ls", svcName);
return;
}
hi = ShellExecuteW(NULL, L"open", L"sc", szCmd, NULL, SW_HIDE);
if ((int)hi <= 32) {
WcaLog(LOGMSG_STANDARD, "Failed to create service with shell : %d, last error: 0x%02X.", (int)hi, GetLastError());
}
else {
WcaLog(LOGMSG_STANDARD, "Service \"%ls\" is created with shell.", svcName);
}
// Query and log if the service is running.
for (int k = 0; k < 10; ++k) {
if (!QueryServiceStatusExW(svcName, &svcStatus)) {
lastErrorCode = GetLastError();
if (lastErrorCode == ERROR_SERVICE_DOES_NOT_EXIST) {
if (k == 29) {
WcaLog(LOGMSG_STANDARD, "Failed to query service status: \"%ls\", service is not found.", svcName);
return;
}
else {
Sleep(100);
continue;
}
}
// Break if the service exists.
WcaLog(LOGMSG_STANDARD, "Failed to query service status: \"%ls\", error: 0x%02X.", svcName, lastErrorCode);
break;
}
else {
if (svcStatus.dwCurrentState == SERVICE_RUNNING) {
WcaLog(LOGMSG_STANDARD, "Service \"%ls\" is running.", svcName);
return;
}
WcaLog(LOGMSG_STANDARD, "Service \"%ls\" is not running.", svcName);
break;
}
}
hr = StringCchPrintfW(szCmd, cchCmd, L"/c sc start %ls", svcName);
if (FAILED(hr)) {
WcaLog(LOGMSG_STANDARD, "Failed to make command: %ls", svcName);
return;
}
hi = ShellExecuteW(NULL, L"open", L"cmd.exe", szCmd, NULL, SW_HIDE);
if ((int)hi <= 32) {
WcaLog(LOGMSG_STANDARD, "Failed to start service with shell : %d, last error: 0x%02X.", (int)hi, GetLastError());
}
else {
WcaLog(LOGMSG_STANDARD, "Service \"%ls\" is started with shell.", svcName);
}
}
void TryStopDeleteServiceByShell(LPWSTR svcName)
{
HRESULT hr = S_OK;
HINSTANCE hi = 0;
wchar_t szCmd[800] = { 0 };
DWORD cchCmd = sizeof(szCmd) / sizeof(szCmd[0]);
SERVICE_STATUS_PROCESS svcStatus;
DWORD lastErrorCode = 0;
WcaLog(LOGMSG_STANDARD, "TryStopDeleteServiceByShell, service: %ls", svcName);
hr = StringCchPrintfW(szCmd, cchCmd, L"/c sc stop %ls", svcName);
if (FAILED(hr)) {
WcaLog(LOGMSG_STANDARD, "Failed to make command: %ls", svcName);
return;
}
hi = ShellExecuteW(NULL, L"open", L"cmd.exe", szCmd, NULL, SW_HIDE);
// Query and log if the service is stopped or deleted.
for (int k = 0; k < 10; ++k) {
if (!IsServiceRunningW(svcName)) {
break;
}
Sleep(100);
}
if (!QueryServiceStatusExW(svcName, &svcStatus)) {
if (GetLastError() == ERROR_SERVICE_DOES_NOT_EXIST) {
WcaLog(LOGMSG_STANDARD, "Service \"%ls\" is already deleted.", svcName);
return;
}
WcaLog(LOGMSG_STANDARD, "Failed to query service status: \"%ls\" with shell, error: 0x%02X.", svcName, lastErrorCode);
}
else {
WcaLog(LOGMSG_STANDARD, "Status of service: \"%ls\" with shell, current status: %d.", svcName, svcStatus.dwCurrentState);
}
hr = StringCchPrintfW(szCmd, cchCmd, L"/c sc delete %ls", svcName);
if (FAILED(hr)) {
WcaLog(LOGMSG_STANDARD, "Failed to make command: %ls", svcName);
return;
}
hi = ShellExecuteW(NULL, L"open", L"cmd.exe", szCmd, NULL, SW_HIDE);
if ((int)hi <= 32) {
WcaLog(LOGMSG_STANDARD, "Failed to delete service with shell : %d, last error: 0x%02X.", (int)hi, GetLastError());
}
else {
WcaLog(LOGMSG_STANDARD, "Service \"%ls\" deletion is completed without errors with shell,", svcName);
}
// Query and log the status of the service after deletion.
for (int k = 0; k < 10; ++k) {
if (!QueryServiceStatusExW(svcName, &svcStatus)) {
if (GetLastError() == ERROR_SERVICE_DOES_NOT_EXIST) {
WcaLog(LOGMSG_STANDARD, "Service \"%ls\" is deleted with shell.", svcName);
return;
}
}
Sleep(100);
}
if (!QueryServiceStatusExW(svcName, &svcStatus)) {
lastErrorCode = GetLastError();
if (lastErrorCode == ERROR_SERVICE_DOES_NOT_EXIST) {
WcaLog(LOGMSG_STANDARD, "Service \"%ls\" is deleted with shell.", svcName);
return;
}
WcaLog(LOGMSG_STANDARD, "Failed to query service status: \"%ls\" with shell, error: 0x%02X.", svcName, lastErrorCode);
}
else {
WcaLog(LOGMSG_STANDARD, "Failed to delete service: \"%ls\" with shell, current status: %d.", svcName, svcStatus.dwCurrentState);
}
}

14
res/msi/CustomActions/ServiceUtils.cpp
View File

@ -58,13 +58,13 @@ bool MyDeleteServiceW(LPCWSTR serviceName)
{ {
SC_HANDLE hSCManager = OpenSCManagerW(NULL, NULL, SC_MANAGER_CONNECT); SC_HANDLE hSCManager = OpenSCManagerW(NULL, NULL, SC_MANAGER_CONNECT);
if (hSCManager == NULL) { if (hSCManager == NULL) {
WcaLog(LOGMSG_STANDARD, "Failed to open Service Control Manager"); WcaLog(LOGMSG_STANDARD, "Failed to open Service Control Manager, error: 0x%02X", GetLastError());
return false; return false;
} }
SC_HANDLE hService = OpenServiceW(hSCManager, serviceName, SERVICE_STOP | DELETE); SC_HANDLE hService = OpenServiceW(hSCManager, serviceName, SERVICE_STOP | DELETE);
if (hService == NULL) { if (hService == NULL) {
WcaLog(LOGMSG_STANDARD, "Failed to open service: %ls", serviceName); WcaLog(LOGMSG_STANDARD, "Failed to open service: %ls, error: 0x%02X", serviceName, GetLastError());
CloseServiceHandle(hSCManager); CloseServiceHandle(hSCManager);
return false; return false;
} }
@ -76,7 +76,7 @@ bool MyDeleteServiceW(LPCWSTR serviceName)
bool success = DeleteService(hService); bool success = DeleteService(hService);
if (!success) { if (!success) {
WcaLog(LOGMSG_STANDARD, "Failed to delete service: %ls", serviceName); WcaLog(LOGMSG_STANDARD, "Failed to delete service: %ls, error: 0x%02X", serviceName, GetLastError());
} }
CloseServiceHandle(hService); CloseServiceHandle(hService);
@ -89,20 +89,20 @@ bool MyStartServiceW(LPCWSTR serviceName)
{ {
SC_HANDLE hSCManager = OpenSCManagerW(NULL, NULL, SC_MANAGER_CONNECT); SC_HANDLE hSCManager = OpenSCManagerW(NULL, NULL, SC_MANAGER_CONNECT);
if (hSCManager == NULL) { if (hSCManager == NULL) {
WcaLog(LOGMSG_STANDARD, "Failed to open Service Control Manager"); WcaLog(LOGMSG_STANDARD, "Failed to open Service Control Manager, error: 0x%02X", GetLastError());
return false; return false;
} }
SC_HANDLE hService = OpenServiceW(hSCManager, serviceName, SERVICE_START); SC_HANDLE hService = OpenServiceW(hSCManager, serviceName, SERVICE_START);
if (hService == NULL) { if (hService == NULL) {
WcaLog(LOGMSG_STANDARD, "Failed to open service: %ls", serviceName); WcaLog(LOGMSG_STANDARD, "Failed to open service: %ls, error: 0x%02X", serviceName, GetLastError());
CloseServiceHandle(hSCManager); CloseServiceHandle(hSCManager);
return false; return false;
} }
bool success = StartServiceW(hService, 0, NULL); bool success = StartServiceW(hService, 0, NULL);
if (!success) { if (!success) {
WcaLog(LOGMSG_STANDARD, "Failed to start service: %ls", serviceName); WcaLog(LOGMSG_STANDARD, "Failed to start service: %ls, error: 0x%02X", serviceName, GetLastError());
} }
CloseServiceHandle(hService); CloseServiceHandle(hService);
@ -156,7 +156,7 @@ bool QueryServiceStatusExW(LPCWSTR serviceName, SERVICE_STATUS_PROCESS* status)
} }
DWORD bytesNeeded; DWORD bytesNeeded;
BOOL success = QueryServiceStatusEx(hService, SC_STATUS_PROCESS_INFO, reinterpret_cast<LPBYTE>(&status), sizeof(status), &bytesNeeded); BOOL success = QueryServiceStatusEx(hService, SC_STATUS_PROCESS_INFO, reinterpret_cast<LPBYTE>(status), sizeof(*status), &bytesNeeded);
if (!success) { if (!success) {
WcaLog(LOGMSG_STANDARD, "Failed to query service: %ls", serviceName); WcaLog(LOGMSG_STANDARD, "Failed to query service: %ls", serviceName);
} }

20
res/msi/Package/Components/RustDesk.wxs
View File

@ -41,8 +41,10 @@
<Custom Action="SetPropertyServiceStop.SetParam.ConfigKey" Before="SetPropertyServiceStop" Condition="NOT Installed" /> <Custom Action="SetPropertyServiceStop.SetParam.ConfigKey" Before="SetPropertyServiceStop" Condition="NOT Installed" />
<Custom Action="SetPropertyServiceStop.SetParam.PropertyName" Before="SetPropertyServiceStop" Condition="NOT Installed" /> <Custom Action="SetPropertyServiceStop.SetParam.PropertyName" Before="SetPropertyServiceStop" Condition="NOT Installed" />
<Custom Action="CreateStartService" Before="InstallFinalize" Condition="NOT STOP_SERVICE=&quot;&apos;Y&apos;&quot;" /> <!-- Do not call CreateStartService if is uninstalling. -->
<Custom Action="CreateStartService.SetParam" Before="CreateStartService" Condition="NOT STOP_SERVICE=&quot;&apos;Y&apos;&quot;" /> <!-- (Installed AND REMOVE AND NOT UPGRADINGPRODUCTCODE) means uninstalling. -->
<Custom Action="CreateStartService" Before="InstallFinalize" Condition="(NOT (Installed AND REMOVE AND NOT UPGRADINGPRODUCTCODE)) AND (NOT STOP_SERVICE=&quot;&apos;Y&apos;&quot;)" />
<Custom Action="CreateStartService.SetParam" Before="CreateStartService" Condition="(NOT (Installed AND REMOVE AND NOT UPGRADINGPRODUCTCODE)) AND (NOT STOP_SERVICE=&quot;&apos;Y&apos;&quot;)" />
<Custom Action="CustomActionHello" Before="InstallFinalize" /> <Custom Action="CustomActionHello" Before="InstallFinalize" />
@ -51,18 +53,18 @@
<Custom Action="TryDeleteStartupShortcut.SetParam" Before="SetPropertyIsServiceRunning" Condition="STOP_SERVICE=&quot;&apos;Y&apos;&quot;" /> <Custom Action="TryDeleteStartupShortcut.SetParam" Before="SetPropertyIsServiceRunning" Condition="STOP_SERVICE=&quot;&apos;Y&apos;&quot;" />
<!-- Launch ClientLauncher if installing or already installed and not uninstalling --> <!-- Launch ClientLauncher if installing or already installed and not uninstalling -->
<Custom Action="LaunchApp" After="InstallFinalize" /> <Custom Action="LaunchApp" After="InstallFinalize" Condition="NOT (Installed AND REMOVE AND NOT UPGRADINGPRODUCTCODE)"/>
<Custom Action="LaunchAppTray" After="InstallFinalize" Condition="NOT STOP_SERVICE=&quot;&apos;Y&apos;&quot;"/> <Custom Action="LaunchAppTray" After="InstallFinalize" Condition="(NOT (Installed AND REMOVE AND NOT UPGRADINGPRODUCTCODE)) AND (NOT STOP_SERVICE=&quot;&apos;Y&apos;&quot;)"/>
<!--Workaround of "fire:FirewallException". If Outbound="Yes" or Outbound="true", the following error occurs.--> <!--Workaround of "fire:FirewallException". If Outbound="Yes" or Outbound="true", the following error occurs.-->
<!--ExecFirewallExceptions: Error 0x80070057: failed to add app to the authorized apps list--> <!--ExecFirewallExceptions: Error 0x80070057: failed to add app to the authorized apps list-->
<Custom Action="AddFirewallRules" Before="InstallFinalize"/> <Custom Action="AddFirewallRules" Before="InstallFinalize" Condition="NOT (Installed AND REMOVE AND NOT UPGRADINGPRODUCTCODE)"/>
<Custom Action="AddFirewallRules.SetParam" Before="AddFirewallRules" Condition="NOT Installed"/> <Custom Action="AddFirewallRules.SetParam" Before="AddFirewallRules" Condition="NOT (Installed AND REMOVE AND NOT UPGRADINGPRODUCTCODE)"/>
<Custom Action="AddRegSoftwareSASGeneration" Before="InstallFinalize" /> <Custom Action="AddRegSoftwareSASGeneration" Before="InstallFinalize" Condition="NOT (Installed AND REMOVE AND NOT UPGRADINGPRODUCTCODE)"/>
<Custom Action="RemoveInstallFolder" Before="RemoveFiles" Condition="Installed AND NOT UPGRADINGPRODUCTCODE AND REMOVE"/> <Custom Action="RemoveInstallFolder" Before="RemoveFiles"/>
<Custom Action="RemoveInstallFolder.SetParam" Before="RemoveInstallFolder" Condition="Installed AND NOT UPGRADINGPRODUCTCODE AND REMOVE"/> <Custom Action="RemoveInstallFolder.SetParam" Before="RemoveInstallFolder"/>
<Custom Action="TryStopDeleteService" Before="RemoveInstallFolder.SetParam" /> <Custom Action="TryStopDeleteService" Before="RemoveInstallFolder.SetParam" />
<Custom Action="TryStopDeleteService.SetParam" Before="TryStopDeleteService" /> <Custom Action="TryStopDeleteService.SetParam" Before="TryStopDeleteService" />