diff --git a/process/iphelper/get.go b/process/iphelper/get.go
index 78c6bb12..99c0f821 100644
--- a/process/iphelper/get.go
+++ b/process/iphelper/get.go
@@ -178,7 +178,7 @@ func GetUDP6PacketInfo(localIP net.IP, localPort uint16, remoteIP net.IP, remote
 	return -1, pktDirection, nil
 }
 
-func search(connections, listeners []*ConnectionEntry, localIP, remoteIP net.IP, localPort, remotePort uint16, pktDirection bool) (pid int, direction bool) {
+func search(connections, listeners []*ConnectionEntry, localIP, remoteIP net.IP, localPort, remotePort uint16, pktDirection bool) (pid int, direction bool) { //nolint:unparam // TODO: use direction, it may not be used because results caused problems, investigate.
 	lock.RLock()
 	defer lock.RUnlock()
 
diff --git a/process/iphelper/iphelper.go b/process/iphelper/iphelper.go
index f4799fe9..a7c259da 100644
--- a/process/iphelper/iphelper.go
+++ b/process/iphelper/iphelper.go
@@ -37,7 +37,7 @@ func New() (*IPHelper, error) {
 
 	// load dll
 	new.dll = windows.NewLazySystemDLL("iphlpapi.dll")
-	new.dll.Load()
+	err = new.dll.Load()
 	if err != nil {
 		return nil, err
 	}
diff --git a/process/iphelper/tables.go b/process/iphelper/tables.go
index d80ab0c5..8ffecfd7 100644
--- a/process/iphelper/tables.go
+++ b/process/iphelper/tables.go
@@ -59,14 +59,14 @@ type iphelperTCP6Table struct {
 
 type iphelperTCP6Row struct {
 	// docs: https://msdn.microsoft.com/en-us/library/windows/desktop/aa366896(v=vs.85).aspx
-	localAddr     [16]byte
-	localScopeID  uint32
-	localPort     uint32
-	remoteAddr    [16]byte
-	remoteScopeID uint32
-	remotePort    uint32
-	state         uint32
-	owningPid     uint32
+	localAddr  [16]byte
+	_          uint32 // localScopeID
+	localPort  uint32
+	remoteAddr [16]byte
+	_          uint32 // remoteScopeID
+	remotePort uint32
+	state      uint32
+	owningPid  uint32
 }
 
 type iphelperUDPTable struct {
@@ -90,10 +90,10 @@ type iphelperUDP6Table struct {
 
 type iphelperUDP6Row struct {
 	// docs: https://msdn.microsoft.com/en-us/library/windows/desktop/aa366923(v=vs.85).aspx
-	localAddr    [16]byte
-	localScopeID uint32
-	localPort    uint32
-	owningPid    uint32
+	localAddr [16]byte
+	_         uint32 // localScopeID
+	localPort uint32
+	owningPid uint32
 }
 
 // IP and Protocol constants
@@ -137,7 +137,7 @@ func increaseBufSize() int {
 	defer bufSizeLock.Unlock()
 
 	// increase
-	bufSize = bufSize * 2
+	bufSize *= 2
 	// not too much
 	if bufSize > 65536 {
 		bufSize = 65536
@@ -149,7 +149,7 @@ func increaseBufSize() int {
 }
 
 // GetTables returns the current connection state table of Windows of the given protocol and IP version.
-func (ipHelper *IPHelper) GetTables(protocol uint8, ipVersion uint8) (connections []*ConnectionEntry, listeners []*ConnectionEntry, err error) {
+func (ipHelper *IPHelper) GetTables(protocol uint8, ipVersion uint8) (connections []*ConnectionEntry, listeners []*ConnectionEntry, err error) { //nolint:gocognit,gocycle // TODO
 	// docs: https://msdn.microsoft.com/en-us/library/windows/desktop/aa365928(v=vs.85).aspx
 
 	if !ipHelper.valid.IsSet() {
diff --git a/process/proc/gather.go b/process/proc/gather.go
index a912b958..436b0bb2 100644
--- a/process/proc/gather.go
+++ b/process/proc/gather.go
@@ -1,3 +1,5 @@
+// +build linux
+
 package proc
 
 import (
diff --git a/process/proc/get.go b/process/proc/get.go
index 1fe68940..dec27e23 100644
--- a/process/proc/get.go
+++ b/process/proc/get.go
@@ -1,3 +1,5 @@
+// +build linux
+
 package proc
 
 import (
diff --git a/process/proc/processfinder.go b/process/proc/processfinder.go
index f6f57408..5ee1bb4b 100644
--- a/process/proc/processfinder.go
+++ b/process/proc/processfinder.go
@@ -1,3 +1,5 @@
+// +build linux
+
 package proc
 
 import (
diff --git a/process/proc/processfinder_test.go b/process/proc/processfinder_test.go
index 30df4483..16d3d181 100644
--- a/process/proc/processfinder_test.go
+++ b/process/proc/processfinder_test.go
@@ -1,3 +1,5 @@
+// +build linux
+
 package proc
 
 import (
diff --git a/process/proc/sockets.go b/process/proc/sockets.go
index 49027119..c82b078c 100644
--- a/process/proc/sockets.go
+++ b/process/proc/sockets.go
@@ -1,3 +1,5 @@
+// +build linux
+
 package proc
 
 import (
diff --git a/process/proc/sockets_test.go b/process/proc/sockets_test.go
index 71574ffe..44e8fd34 100644
--- a/process/proc/sockets_test.go
+++ b/process/proc/sockets_test.go
@@ -1,3 +1,5 @@
+// +build linux
+
 package proc
 
 import (